Mihawk fears Zoro, and unlike Rayleigh he couldn't tell Zoro's power with CoO like Rayleigh could tell approximately how many animals Luffy would lose to.
Viver Card confirms he can tell someone's Power easily, that's why he gained Interest in Luffy & Zoro
It also confirmed that He was the first one to notice that WB is Sick & Weakened according to same Viver Card
Also Mihawk thinkin Zoro cannot Defeat the Monkeys doesn't mean he believes he is Weaker, it's just that they Outnumber him
Yes, just like he traveled Half the World to find Krieg but lost interest in him quickly & didn't bother with him after Krieg attacked him.
Vista himself was surprised Mihawk even heard about him & the guy is Top Commander from WB Pirates with most probably a Bounty around a Billion, & even Yonko themselves know other's Commanders well, but Nope, Vista was shocked that Mihawk even heard about him.
Also Mihawk was thinking about Luffy & gave us a Famous Statement about him & the fact that Mihawk was thinking about Luffy instead of Vista shows that he doesn't care about Vista at all.
Marco handled Kizaru too & Jozu handled Aokiji too & Garp didn't even face him & Crocodile was stopped by Luffy ... etc and yet he made a Comment on all of them. Except Mihawk that Oda while he was drawing, chose to not add any Comment.
Same WB who when he met a fellow Yonko, he couldn't resist but mention Mihawk & associate him with Legendary Duels & Power.
Not only it proves WB think very highly of Mihawk to the point he praises a fellow Yonko just for fighting him but it also means Shanks never ever fought someone stronger than Mihawk! & also shows that Oda wanted to add Mihawk to the conversation badly even if it was out of Context.
On the other hand, when he drew Garp meeting Luffy, he was gonna make Usopp ask Garp about Yasopp but decided to drop it.
Yassop who is someone among Strongest Yonko Commanders & have Rivalry with Vista & Father of a Main Character had his Mention dropped by Oda, but Mihawk? Nope, Oda forced him in the Conversation even though it was completely out of context & need
Vista is strong enough to spare with Non-Serious Mihawk, it's not like weaker Swordsmen can't even spare at least with Superior Swordsmen. Even Onimaru spared with Zoro for quiet some time, so stop kidding yourself.
Marco didn't believe Vista can match Mihawk, he simply knows that Vista is Skilled enough & have Swords to clash with Mihawk & save Luffy, because most others are weaponless & would get killed against a Sword Slash
