The Shichibukai are seven pirates allied to the World Government. In return, the World Government gave them permission to do whatever they wanted. These seven pirates are very powerful, and have a pretty scary reputation. In this article I will discuss about the ranking of the strongest former Shichibukai in One Piece.
1.crokodile
Wikia.com
Crocodile is a former leader of the Organization called Baroque Works. He has a Logia type of Devil Fruit called Suna Suna no Mi that allows him to create and control Sand as he pleased. Crocodile was able to defeat Luffy twice in battle, and was able to hit one of the Beast Jailers in Impel Down. Even though he has a Devil Fruit, he has a big weakness aside from Haki, and that is Water. Luffy exploits his water weakness, and that's the reason behind Crocodile's defeat. Crocodile is the weakest Shichibukai on this list.
2.geco moria
wikia.com
Gecko Moria is a former pirate captain of an unknown pirate crew and is a longtime rival of Yonkōu, Kaido. He has a kind of Paramecia Devil Fruit called Kage Kage no Mi that allows him to control anyone's shadow. Moria can also eat this shadow to increase its power drastically. He is a very strong character because he is able to fight against Kaido and fight the Commander of the Whitebeard Pirate Division. In addition, he was able to fight Luffy in the Second and Third Gear with ease.
3.jinbei
Wikia.com
Jinbe is a former captain of the Sun Pirates, and is now a member of the Strawhat Pirates. He is a master in using Fishman Karate, and can use the Haki Armament as well. Jinbe has done some amazing things as a pirate. He fought against Ace against and was able to defeat Gecko Moria. In addition, his greatest achievement was that he was able to deflect the attack of Big Mom's sword, and then hit Big Mom a few feet away. Currently, Jinbei's powers are bigger than other pure Fishmen in One Piece.
4.trafalgar D.water law
Wikia.com
Law is the captain of the Heart Pirate and is a member of the Worst Generation. He has the type Devil Fruit Paramecia called Ope Ope no Mi, which allows him to create ROOM where he can control anything at will while in the ROOM. Law can use two types of Haki, and he is a master in using Haki Armament. Law is also a great swordsman and has a cursed sword. He is a very powerful pirate and achieved many achievements during his life as a pirate.
5.doncuensote doflamigo
Wikia.com
Doflamingo is a former Pirate captain of Donquixote. Doflamingo has a kind of Paramecia Devil Fruit called Ito Ito no Mi that allows it to create and control the thread at will. This yarn is very durable and can not be damaged in the normal way. Doflamingo has also raised his Devil Fruit. The Devil Fruit Resurrection allows him to change whatever he touches into a thread. The attack power of the Doflamingo movement also increased rapidly.
He can use all three types of Haki. Doflamingo has enormous strength, because he is able to defeat a Vice Admiral Vice with ease. He defeated Trafalgar Law, a former Shichibukai twice in a fight, and even brutally hurt him. In addition, he is able to fight and defeat Luffy in the Second Gear and Third form with ease. And when Luffy opens the Fourth Gear, Doflamingo is only able to do a small fight against Luffy.
6.blakbeard
Wikia.com
Blackbeard is the captain of the Blackbeard Pirate, and now becomes Yonkōu. He has two kinds of Devil Fruit; the first is a Logia type of Devil Fruit called Yami Yami no Mi which allows him to undo the power of Devil Fruit, and the second is a kind of Paramecia Devil Fruit called Gura Gura no Mi which allows him to create earthquakes.
It is not known if he can use Haki. But even without Haki, Devil Fruit gives him an edge in battle. Blackbeard was able to fight and defeat Ace in a fight, and was also able to fight former Fleet Admiral Sengoku. In addition, as time passed, Blackbeard defeated Marco from the Whitebeard Pirates in a bout with ease. Blackbeard is undoubtedly the strongest former Shichibukai.
@naula