Pre-skip Enemies vs Post-Skip Strawhats

So i'm curious, there were a lot of enemies introduced in OP pre-timeskip that were completely out of the league of the Strawhat crew (Luffy excluded, as he was the one to defeat most of these guys)....What I wanna know is what are some match-ups that you could see going down now, that would yield different results, had they gone down pre-timeskip? I'll start!

Sanji Vs Rob Lucci: I see this battle being a very intense and physical battle. Pre-timeskip, with Lucci's mastery over...

Pre-skip Enemies vs Post-Skip Strawhats