Roronoa Zoro is a very powerful swordsman, and fans know him to be one of the strongest members of the Straw Hat Pirate Crew. He aims to defeat Dracul Mihawk and become the strongest swordsman in the world, and while that is a difficult task, Zoro is not far from Mihawk's level now. Over the years, Zoro has reached unprecedented levels of power and defeated countless enemies.
now, a piece The finale is in the saga, and that means Zoro is close to his goal. Along the way, he has managed to overcome many powerful characters who either come against him, who rival him in terms of swordsmanship, or who are in the same position as him.

One piece creator Oda officially confirms Sanji's new champion haki
One Piece Chapter 1187 officially confirmed Sanji as the Conqueror's Haki user.
6
Vista
-
Affiliation: Whitebeard Pirate
-
Bounty: Unknown
-
Devil Fruit: None
-
Haki: The color of weapons, the color of observation
The fifth division commander of the Whitebeard Pirates, Flower Sword Vista is a powerful swordsman that fans haven't seen much of in one piece. What fans do know is that he was the strongest swordsman of the Whitebeard Pirates. Vista was also one of their strongest fighters, and one who could even hold her own against Dracul Mihawk during the Paramount War arc.
Zoro, at this point, should be strong enough to rival him in battle and, given that he has unlocked abilities such as the power of Conqueror's Haki Infusion, he should be able to take down the Flower Sword Vista in battle. It is fair to say that Zoro has surpassed him now.
5
Charlotte Katakuri
-
Affiliation: Big Mother Pirate
-
Bounty: 1.057 billion berries
-
Devil's Fruit: Mochi Mochi No Me
-
Haki: Color of Arms, Color of Observation, Color of Supreme King
Charlotte Katakuri is the strongest of the three sweet commanders of the Big Mom Pirates, and of course, she is the one who holds the same position as Zoro in the Straw Hat Pirates. Katakuri has a bounty of 1.057 billion berries on his head. Zoro, meanwhile, has himself received a bounty of 1.111 billion.
Katakuri is in Zoro's favorite league, and it will be very difficult for the Straw Hat Swordsman to fight against him. However, just as he was able to defeat the king, he was able to defeat Katakuri in battle as well. This fight will definitely be difficult for Zoro, landing blows on Katakuri is very difficult for him, and, at the same time, Zoro has limited time when it comes to using his King of Hell Three Sword style. But a few good hits should be enough to take Katakuri down.
4
Shirayu
-
Affiliation: Blackbeard Pirate
-
Bounty: Unknown
-
Devil Fruit: Suke Suke no Mi
-
Haki: The color of weapons, the color of observation
The second ship captain of the Blackbeard Pirates, fans know Shiryu as a very powerful person. He was once the head jailer of Impel Down, and now, he is one of Blackbeard's strongest underlings. In fact, Oda clearly states that he is the number two of the Blackbeard Pirate Team, making him Zoro's enemy.
Shiryu wields the power of Suke Suke no Mi, which makes him an invisible swordsman, and is definitely one of the hardest things for anyone to face in battle. At the same time, he has his own bloodthirsty sword called Rau, using which he can cut down anyone in his path. Right now, Shiryu doesn't look that impressive when compared to Zoro. Perhaps, he has incredible sword skills that we haven't seen. However, now Zoro has managed to reach much higher than Shiryu.

Say hello to the new king of straw hats in one piece
The Straw Hat Pirates welcome a new king to their ranks in the Elbaf arc climax.
3
Donquixote Doflamingo
-
Affiliation: Donquixote Pirates
-
Bounty: 320 million berries (frozen)
-
Devil Fruit: Ito Ito no Mi
-
Haki: Color of Arms, Color of Observation, Color of Supreme King
Doflamingo is a very powerful person who was defeated by the Straw Hat Pirates during the Dressrosa arc. a piece. Back then, it was Luffy who fought against him and defeated him. However, his abilities are similar to Zoro's.
Doflamingo can cut through things using his wires, and fans have found his abilities to be quite dangerous. Now, Zoro has reached a level where he can fight against Doflamingo and easily defeat him in a fight, and that goes without saying. Doflamingo would have been a very good opponent for Zoro at one point, but now, Zoro is far above his level and as a result, can defeat him in a single strike.
2
Rob Lucy
-
Affiliation: CP0
-
Bounty: None
-
Devil Fruit: Neko Neko No Me, Model: Leopard
-
Haki: The color of weapons, the color of observation
Rob Lucy is the most powerful person Zorro has ever done business with. In fact, it wouldn't be a stretch to say that Lucy is one of Zoro's fiercest opponents of all time. In the Egghead arc, Lucy showed her awakened form, and the power of this form was such that she was able to hold her own against Zoro as the latter made the most of Conqueror and Armament Haki. In the end, the fight was never resolved, but Zoro fatally wounded him in the chest before being blown away by Jinbe. During the Elbaf arc, Zoro has surpassed Lucy, but the fight between them will still be close.
1
Marco the Phoenix
-
Affiliation: Whitebeard Pirate
-
Bounty: 1.374 billion berries
-
Devil Fruit: Tori Tori No Me, Model: Phoenix
-
Haki: The color of weapons, the color of observation
Marco is one of the strongest characters a pieceKnown as the former First Division Commander of the Whitebeard Pirates. He wields the power of the Phoenix Fruit, using which he controls the blue flames of resurrection. He is capable of healing from any wound, and on top of that, he is incredibly powerful in terms of Haki usage.
While Marco is a monstrously powerful fighter, Zoro uses the color of the Supreme King and can coat his swords in it. Although Marco is much stronger than the king, Zoro is a man who aims to become the strongest swordsman. For that, his ambition and ability to deal lethal damage worth scaring Kaido should be enough to damage Marco. Zoro's only downside is his lack of stamina when using the King of Hell. If Zoro manages to bypass that weakness and gain full control King of Hell: Three Swords style, he can definitely defeat Marco.
One Piece is available to read through Manga Plus and Viz Media.