Vergo win this easily. At best Crocodile can be around Executive level, but even then, he should be at the end of that level, on top of that Vergo wasn't ordinary executive.
Not really fair since I expect post skip Croc to be a big badass that will be on a new level to join the game again.
But from what we've seen from croc pre skip he would get wrecked against vergo. Croc was already having a hard time with Jozu and his haki and speed combination. Vergo has that too and has shown he knows how to beat a logia.
Only chances Crocodile got are the poison from his hook and sucking the moist out of everything with his hand.