In one piece, we are presented with various types of swordsmanship. However, amongst the strongest swordsmen, Mihawk's swordsmanship is unique. It is unique in that Mihawk is the only one of the top swordsmen who utilizes a classical form of swordsmanship.
Mihawk uses his sword to cut his enemies. No other top tier swordsman uses their sword like this.
Fujitora uses his sword to channel his gravity powers. Shanks imbues his sword with internal destruction haki in order to create a shockwave like slash(which I believe is how kamusari was described in some promotional material). Kizaru uses a laser sword. Big Mom's ikoku is more of a sword blast than an actual slicing attack.
Mihawk is the only one who cuts.
I think the reason why Mihawk's swordsmanship is the greatest is that it is the hardest swordsmanship to master. Using DFs is basically a form of cheat codes that boosts your power level. Techniques like Ikoku probably take zero skill and just raw strength.
Regarding Shanks and Roger's internal destruction swordsmanship, this is likely a less skilled swordsmanship. A good swordsman can cut anything, but Shanks and Roger don't care about cutting, they just use internal destruction haki because it is normally the more powerful variant of CoA.
Mihawk on the other hand doesn't use internal destruction CoA, not because he can't, but rather because it betrays the ideal of swordsmanship. Rather, he focuses on using his haki to increase the hardness of his blade, so that he can cut anything he wishes. In doing so, Mihawk mastered armament hardening and attained the strongest version of armament hardening, the black blade.
Normally, internal destruction haki is more powerful than armament hardening, but via a black blade, Mihawk can defeat even internal destruction haki swordsmen like Shanks.
Mihawk uses his sword to cut his enemies. No other top tier swordsman uses their sword like this.
Fujitora uses his sword to channel his gravity powers. Shanks imbues his sword with internal destruction haki in order to create a shockwave like slash(which I believe is how kamusari was described in some promotional material). Kizaru uses a laser sword. Big Mom's ikoku is more of a sword blast than an actual slicing attack.
Mihawk is the only one who cuts.
I think the reason why Mihawk's swordsmanship is the greatest is that it is the hardest swordsmanship to master. Using DFs is basically a form of cheat codes that boosts your power level. Techniques like Ikoku probably take zero skill and just raw strength.
Regarding Shanks and Roger's internal destruction swordsmanship, this is likely a less skilled swordsmanship. A good swordsman can cut anything, but Shanks and Roger don't care about cutting, they just use internal destruction haki because it is normally the more powerful variant of CoA.
Mihawk on the other hand doesn't use internal destruction CoA, not because he can't, but rather because it betrays the ideal of swordsmanship. Rather, he focuses on using his haki to increase the hardness of his blade, so that he can cut anything he wishes. In doing so, Mihawk mastered armament hardening and attained the strongest version of armament hardening, the black blade.
Normally, internal destruction haki is more powerful than armament hardening, but via a black blade, Mihawk can defeat even internal destruction haki swordsmen like Shanks.
