I'm sure you guys are not familiar with this list not unless you are also a big fan of "One Piece". Listed below are the top five most powerful Shichibukai or also known as Warlords. Shichibukai are the 7 powerful and well-known pirate captains who have allied themselves with the World Government. The Shichibukai seem to be a mixture of the more chaotic Yonko and the more orderly Marines. The majority of the Shichibukai are composed of New World veterans; those who have met the Yonko or even confronted them. As far as the current Anime and manga timeline is concern, sorry but i had to exclude Jinbe and Crocodile on my list since both of them decided to fight against the Government and lost their Shichibukai position.
TOP FIVE MOST POWERFUL SHICHIBUKAI (ONE PIECE)
TOP 5 MOST POWERFUL SHICHIBUKAI
"BOA HANCOCK"
Boa Hancock is the only female member of the Shichibukai. She is the Snake Princess (蛇姫 Hebihime?) of Amazon Lily and rules over the Kuja tribe with her two younger Gorgon sisters, Boa Sandersonia and Boa Marigold. She is considered by many to be the most beautiful woman in the world. While she currently remains employed within the Shichibukai, her love for Monkey D. Luffy has caused her to turn against the World Government on a number of occasions. Hancock is a very complex woman. At first glance, she appears to be selfish, pompous and spoiled, used to having her own way. She can also act arrogant and cruel, usually justifying her less-than-admirable actions with her apparently unmatched beauty, causing her to think that she can get away with anything because the world will forgive her. Hancock is widely considered to be extremely powerful by friend and foe alike. Ruling beside her sisters, Hancock has power over Amazon Lily and the rest of the Kuja women. As the Empress and Captain of the tribe, she is most likely the strongest Kuja warrior. Her strength is so great that it has even been acknowledged by Fleet Admiral Sengoku of the Marines. Those who fall in love with Hancock by seduction are susceptible to a range of techniques used by the Devil Fruit which turn people into stone.
TOP 4 MOST POWERFUL SHICHIBUKAI
"BARTHOLEMEW KUMA"
Bartholomew Kuma is a Shichibukai and former revolutionary with a bounty of 
296,000,000. He was once feared as an extremely vicious pirate, earning himself the title "Tyrant". He is a type of cyborg called "Pacifista" developed by Dr. Vegapunk. Once Vegapunk finished his modifications on Kuma, the Shichibukai was converted into the first complete Pacifista cyborg with the serial PX-0, and figuratively died in the process. Kuma is an enormous man, nearing 7 meters tall, he is the tallest remaining Shichibukai (being one inch shorter than former member Moriah) and is usually seen carrying a Bible. His overall appearance resembles that of a bear, though there are a few key differences. Despite his imposing figure and his past reputation, Bartholomew Kuma is a very calm and quiet person. In addition to his demeanor, he can also be seen as somewhat of a benevolent character, especially compared to the other Shichibukai. Kuma is one of the few people to have completely defeated the entire Straw Hat Pirates, and is also the only character introduced so far that has defeated the crew single-handedly, twice.
TOP 3 MOST POWERFUL SHICHIBUKAI
"DRACULE MIHAWK"
Dracule "Hawk-Eyes" Mihawk is a member of the Shichibukai and the current holder of the title, "Greatest Swordsman in the World". Mihawk serves as Roronoa Zoro's swordsmanship teacher during the two-year timeskip. Mihawk is a tall and lean man with a short beard and sideburns that point upwards. His nickname comes from his strangely colored yellow eyes, which resemble a hawk's eyes. Dracule Mihawk is possibly one of the most serious characters in One Piece; very little seems to surprise him, he rarely smiles, and he has only been seen laughing once in the series so far.True to his epithet, "Hawk Eyes," Dracule Mihawk has exceptional eyesight, able to easily track Luffy's high speed Gear Second movements, and strike with extreme precision, releasing a long-range slash at him while there was a chaotic battlefront of New World pirates and Marine officers between them.Mihawk's strength is so great that Don Krieg accuses him of having the power of a Devil Fruit; however, in the Databooks, his abilities appear to be simply brute power and skill.
TOP 2 MOST POWERFUL SHICHIBUKAI
"MARSHALL D. TEACH"
Marshall D. Teach commonly referred to as Blackbeard , is the captain of the Blackbeard Pirates and one of the Yonko who rule over the second half of the grand line, the New World. He also briefly held the position of Shichibukai after handing Ace over to the Marines, but has since forfeited the title after gaining new crew mates from Impel Down before taking over his former captain's territory and becoming one of the Yonko. He is one of the main antagonists of the series. Blackbeard has become the first and so far only user to wield the powers of two Devil Fruits at the same time. Through unknown means he acquired the extremely destructive powers of the Gura Gura no Mi from the dead body of Whitebeard and is now able to create earthquakes like his old captain.With the power of darkness (Yami Yami no Mi), which "reduces anything to nothingness", and the power of quakes (Gura Gura no Mi), which "brings destruction to all", Blackbeard claims himself to be truly invincible and the strongest of them all.
THE MOST POWERFUL SHICHIBUKAI
"DONQUIXOTE DOFLAMINGO"
Donquixote Doflamingo is one of the Shichibukai. His former bounty is 340,000,000. Doflamingo is a large, blond-haired man who generally dresses in flamboyant clothes. In reference to his animal theme, the flamingo, his clothes are brightly colored with his feathered coat being distinctively pink. He also has an odd way of walking, a bow-legged waddle (but he does not always walk like this), which is also a reference to his animal theme, a flamingo. Doflamingo is one of the most carefree characters in the series. He seems to have a penchant for dramatic phrasing, as well as a habit of exaggerated posing when giving declarations. He also appears to fear nothing and no one, as he openly taunts Fleet Admiral Sengoku, sits on the table during the Shichibukai meeting and shows only gleeful interest at the thought of warring with Whitebeard. He is the only Shichibukai known to fight one of his fellow comrades (Gekko Moriah) and actually seriously hurt him (though he was aided by a small group of Pacifistas and Moriah had already taken some damage from the war). Doflamingo possesses an as-of-yet unnamed ability to control people's bodies like puppets. He can make his victims move as he wants by moving his fingers accordingly. Doflamingo mainly uses this power to force comrades to fight (and kill) each other, while Doflamingo himself sits at the sidelines and watches. It is currently unknown what the limitations of his abilities are. He has shown himself capable of controlling more than one person at the same time, without apparent effort.
TOP FIVE MOST POWERFUL SHICHIBUKAI (ONE PIECE)
TOP 5 MOST POWERFUL SHICHIBUKAI
"BOA HANCOCK"
Boa Hancock is the only female member of the Shichibukai. She is the Snake Princess (蛇姫 Hebihime?) of Amazon Lily and rules over the Kuja tribe with her two younger Gorgon sisters, Boa Sandersonia and Boa Marigold. She is considered by many to be the most beautiful woman in the world. While she currently remains employed within the Shichibukai, her love for Monkey D. Luffy has caused her to turn against the World Government on a number of occasions. Hancock is a very complex woman. At first glance, she appears to be selfish, pompous and spoiled, used to having her own way. She can also act arrogant and cruel, usually justifying her less-than-admirable actions with her apparently unmatched beauty, causing her to think that she can get away with anything because the world will forgive her. Hancock is widely considered to be extremely powerful by friend and foe alike. Ruling beside her sisters, Hancock has power over Amazon Lily and the rest of the Kuja women. As the Empress and Captain of the tribe, she is most likely the strongest Kuja warrior. Her strength is so great that it has even been acknowledged by Fleet Admiral Sengoku of the Marines. Those who fall in love with Hancock by seduction are susceptible to a range of techniques used by the Devil Fruit which turn people into stone.TOP 4 MOST POWERFUL SHICHIBUKAI
"BARTHOLEMEW KUMA"
Bartholomew Kuma is a Shichibukai and former revolutionary with a bounty of 296,000,000. He was once feared as an extremely vicious pirate, earning himself the title "Tyrant". He is a type of cyborg called "Pacifista" developed by Dr. Vegapunk. Once Vegapunk finished his modifications on Kuma, the Shichibukai was converted into the first complete Pacifista cyborg with the serial PX-0, and figuratively died in the process. Kuma is an enormous man, nearing 7 meters tall, he is the tallest remaining Shichibukai (being one inch shorter than former member Moriah) and is usually seen carrying a Bible. His overall appearance resembles that of a bear, though there are a few key differences. Despite his imposing figure and his past reputation, Bartholomew Kuma is a very calm and quiet person. In addition to his demeanor, he can also be seen as somewhat of a benevolent character, especially compared to the other Shichibukai. Kuma is one of the few people to have completely defeated the entire Straw Hat Pirates, and is also the only character introduced so far that has defeated the crew single-handedly, twice.TOP 3 MOST POWERFUL SHICHIBUKAI
"DRACULE MIHAWK"
Dracule "Hawk-Eyes" Mihawk is a member of the Shichibukai and the current holder of the title, "Greatest Swordsman in the World". Mihawk serves as Roronoa Zoro's swordsmanship teacher during the two-year timeskip. Mihawk is a tall and lean man with a short beard and sideburns that point upwards. His nickname comes from his strangely colored yellow eyes, which resemble a hawk's eyes. Dracule Mihawk is possibly one of the most serious characters in One Piece; very little seems to surprise him, he rarely smiles, and he has only been seen laughing once in the series so far.True to his epithet, "Hawk Eyes," Dracule Mihawk has exceptional eyesight, able to easily track Luffy's high speed Gear Second movements, and strike with extreme precision, releasing a long-range slash at him while there was a chaotic battlefront of New World pirates and Marine officers between them.Mihawk's strength is so great that Don Krieg accuses him of having the power of a Devil Fruit; however, in the Databooks, his abilities appear to be simply brute power and skill.TOP 2 MOST POWERFUL SHICHIBUKAI
"MARSHALL D. TEACH"
Marshall D. Teach commonly referred to as Blackbeard , is the captain of the Blackbeard Pirates and one of the Yonko who rule over the second half of the grand line, the New World. He also briefly held the position of Shichibukai after handing Ace over to the Marines, but has since forfeited the title after gaining new crew mates from Impel Down before taking over his former captain's territory and becoming one of the Yonko. He is one of the main antagonists of the series. Blackbeard has become the first and so far only user to wield the powers of two Devil Fruits at the same time. Through unknown means he acquired the extremely destructive powers of the Gura Gura no Mi from the dead body of Whitebeard and is now able to create earthquakes like his old captain.With the power of darkness (Yami Yami no Mi), which "reduces anything to nothingness", and the power of quakes (Gura Gura no Mi), which "brings destruction to all", Blackbeard claims himself to be truly invincible and the strongest of them all.THE MOST POWERFUL SHICHIBUKAI
"DONQUIXOTE DOFLAMINGO"
Donquixote Doflamingo is one of the Shichibukai. His former bounty is 340,000,000. Doflamingo is a large, blond-haired man who generally dresses in flamboyant clothes. In reference to his animal theme, the flamingo, his clothes are brightly colored with his feathered coat being distinctively pink. He also has an odd way of walking, a bow-legged waddle (but he does not always walk like this), which is also a reference to his animal theme, a flamingo. Doflamingo is one of the most carefree characters in the series. He seems to have a penchant for dramatic phrasing, as well as a habit of exaggerated posing when giving declarations. He also appears to fear nothing and no one, as he openly taunts Fleet Admiral Sengoku, sits on the table during the Shichibukai meeting and shows only gleeful interest at the thought of warring with Whitebeard. He is the only Shichibukai known to fight one of his fellow comrades (Gekko Moriah) and actually seriously hurt him (though he was aided by a small group of Pacifistas and Moriah had already taken some damage from the war). Doflamingo possesses an as-of-yet unnamed ability to control people's bodies like puppets. He can make his victims move as he wants by moving his fingers accordingly. Doflamingo mainly uses this power to force comrades to fight (and kill) each other, while Doflamingo himself sits at the sidelines and watches. It is currently unknown what the limitations of his abilities are. He has shown himself capable of controlling more than one person at the same time, without apparent effort.