The Donquixote Pirates were a very powerful crew, as their captain was a world famous pirate, a member of the Shichibukai with a former bounty of 340,000,000 Berries and the ruler of the kingdom Dressrosa. Doflamingo himself, along with crew members (past and present) Bellamy, Trafalgar Law, Monet, Baby 5, Caesar Clown, Buffalo, Jora, Trebol, Senor Pink, Machvise, Violet, Diamante, Pica, Gladius, Sugar, and Corazon (in secret) were all known Devil Fruit users.
9-STRAW HAT PIRATES
Despite having a small number of members, the Straw Hats are an extremely powerful crew with amazing potential, as stated by Kuzan when he first met them.
Their captain has continuously defeated people who are renowned for their incredible strength.
Luffy’s achievements in Whole Cake Island were great enough for him to be unofficially titled the “Fifth Emperor of the Sea” with a bounty of 1.5 Billion Berries.
The Straw Hat Pirates crew is now the leader of an alliance called the Straw Hat Grand Fleet, which numbered a total of 5640 members, giving the Straw Hats significantly larger amounts of manpower similar to the Whitebeard Pirates.
The Blackbeard Pirates are one of the most powerful pirate crews that have been shown so far.
During the timeskip, after clashing with the remnants of the Whitebeard Pirates led by Marco the Phoenix and emerging victorious, Marshall D. Teach usurped the status of the deceased Whitebeard as one of the Yonko. After the time-skip, they fought against the Revolutionary Army and destroyed their base. It is also stated that they briefly fought against CP-0.
Recently, the Blackbeard Pirates have become allies with the former marine admiral Kuzan, making them even more dangerous.
The Blackbeard Pirates have also been searching for people with strong Devil Fruit powers, in order to absorb them.
7-BIG MOM PIRATES
Captained by the Yonko Charlotte Linlin, the Big Mom Pirates are one of the four most powerful pirate crews in the world. The higher-ranking members of the crew are extremely proficient with Haki, as Cracker has extremely tough Busoshoku Haki while Charlotte Katakuri has Kenbunshoku Haki so advanced it allows him to see a little bit into the future.
The military might of the crew is immense, consisting of tens of thousands of homies and soldiers.
The sheer number of ships in the crew’s possession gives them considerable naval superiority over most pirate crews.
The Beasts Pirates are led by the Yonko Kaido, making them one of the four most powerful pirate crews in the world.
The true strength of the crew lies in their Underworld connections. Due to Kaido’s alliance with Donquixote Doflamingo and Caesar Clown, they had access to SMILEs to help form an army of over 500 artificial Zoan Devil Fruit users.
5-RED HAIR PIRATES
The Red Hair Pirates are an infamous and powerful pirate crew ruling in the New World, led by their captain, Red-Haired Shanks, who is one of the Yonko.
The best clue to the crew’s strength is that the World Government greatly fears what would happen if the Red Hair Pirates and the Whitebeard Pirates joined up. Right after their battle with Kaido in the New World, they sailed to Marineford in just one day. When Shanks and his crew finally showed up at Marineford, with words alone they were able to bring the war to halt. The captain was able to rescue Coby from Admiral Akainu’s attack with only a clash of his sword and even the arrogant Blackbeard refused to engage Shanks’ crew saying they simply were not ready to fight them yet.
Shanks’ executives Beckman, Roo, and Yasopp have each won their own fame.
Red Hair Pirates crew is the most well-balanced and impenetrable crew among the four Yonko crews.
4-GOLDEN LION PIRATES
The Golden Lion Pirates was a pirate crew led by Shiki the Golden Lion. Twenty-three years prior the story’s beginning, the Golden Lion Pirates were the biggest pirate fleet in the seas.
They managed to terrorize the entire sea with their largest fleet twenty-five years ago, and managed to gain an upper hand against the Roger Pirates. Roughly half the fleet was lost during the Battle in Edd War.
The Whitebeard Pirates were formerly one of the strongest pirate crews in the world, as their captain, Whitebeard, was the only pirate to have ever been a match for the Pirate King, Gol D. Roger, in a fight.
Following the deaths of Whitebeard and Ace, the remaining members of the crew engaged the Blackbeard Pirates in the Payback War, which ended with the Blackbeard Pirates brutally defeating them, followed by conquering their former territories, with their captain usurping Whitebeard’s position in the Yonko. As a result, the crew has lost most of its power and influence.
The Rocks Pirates were a legendary and powerful pirate crew that sailed the seas 38 years before the current storyline.
They were led by Rocks D. Xebec and considered to be the most dangerous and strongest pirate crew of their time. They ruled the seas before the rise of Gol D. Roger, during the time known as the Era of the Rocks.
The crew strength at the time made them the most threatening organisation to the World Government, so the government decided to cover up their actions. Aiming to become the strongest military force in the world, they had at least three of the four future Yonko.
Eventually, it took the combined strength of Gol D. Roger and Monkey D. Garp to defeat them.
The Roger Pirates were the pirate crew of the late Pirate King, Gol D. Roger.
This was the crew that traveled around the Grand Line together and the things they did were part of legends. They made it as far as Skypiea and the end of the Grand Line, Laugh Tale, on their ship the Oro Jackson. Roger was one of the most famous figures of his day, while the name of their first mate, Silvers Rayleigh, is widely known and famed as well.
The crew has been referred to as the strongest crew ever to sail the Grand Line and the New World.