Was Roger not a conqueror when he disbanded his crew when everyone targeted them ?
Mihawk has ACHIEVED his ambition
Roger had stage 4 cancer and couldn't achieve his goal, since the Mermaid princess and the other king weren't born yet or grown up and he was just too early!
That said, since Mihawk is the WSS and to achieve that you have to have a gigantic ambition and determination, it's possibile and maybe desiderable that he has CoC
Does he behave like he is a Cinqueror?
Let's be honest, personality-wise It doesn't fit much, but how much do we know him? I'm sure that he used to be extremely determined and ambitious, like Zoro is right now.
So, it's a paradox but, it's too early to dismiss this question even if he appeared firstly like 20 years ago. There are too many bias and gaps, Oda have to do more to characterize these last few important characters, we're in the endgame ffs
