Didn't jouzo block his strongest slash? More importantly, you do know that by "the world strongest swordman" they mean his swordsmanship not the actual power. Cause that statement would contradict with the fact that Yonko are the strongest pirates in the world. We don;t even know if shankes solely depends on his sword...
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A swordsman doesn't have to solely rely on their sword, just use their sword consistently and regularly. Every time we've seen Shanks in any conflict, he's reached for his sword.
Jozu blocked one slash, so? Even if that was Mihawk's strongest attack, it'd be foolish to think he could one shot Jozu. Jozu also isn't a swordsman, so I don't see your point at all.
No, it means of all the swordsmen, Mihawk is considered the strongest. It's not world's best at swordplay. Does Whitebeard having the title World's Strongest Man mean he's the best at being a man? No, so why does Mihawk's title mean he's best at swordplay skill?
But WB uses that sword like weapon and mihawk is the strongest swordsman so does that mean that he is better than WB in this skills which shows that mihawk can give hard tym to WB.
Conclusion: stop putting mihawk above shanks bcoz your post is saying that he can tank many of the younkous.
1. Never said he could tank many Yonkos, tf did you get that from?
2. A bisento isn't a sword though...so no, it doesn't apply to Whitebeard.
3. Mihawk can definitely give WB a hard time since he's stronger than Shanks by portrayals so far.