Lucci vs Jinbe - Jinbe win (Lucci would lose to franky or brook, he was just enertainment in being brought back, overhyped)
Post WCI Katakuri vs Zoro - 50/50 (Katakuri has same portrayal as Zoro maybe even greater if he's to assume as captain as the once Yonko crew. But at least currently, he is still the #1 of Big Mom and would have gotten stronger after WCI and his defeat.
Fresh Kaido vs Fresh current Luffy - Kaido edge?
Current Crocodile vs Sanji - Crocodile edge? (more experienced fighter and in terms of cross guild itself, he and mihawk are 50/50. though, Current Sanji has a chance.
Doffy vs Current Franky - Franky tbh just because he should be able to beat him.
Usopp vs Buggy - Usopp edge
Moria vs. Brook - Brook because Brook doesn't lose.
Robin vs. Enel - Enel win because not only would Robin's devil fruit leave her more susceptible to shock, she doesn't have haki and therefore cannot touch him. But with Haki I'll give it to Robin unless future enel is spontaneous world threat.
Chopper vs. Caesar - Chopper win, he'll create antidote.
Nami vs Hordy - Nami win, 1 taps with Zeus each time he powers up.