It's nice to hear Lennox give a compliment to Mike. I'm assuming he's referring to a young Tyson, not the shell that he fought.
I think likely it would go like maybe Mitch Green, if Wylder is as tough as his reputation is. My question with Wylder is that he never even fought a remotely threatening heavyweight yet. Wylder's main advantage here is only size, which does matter, but won't tip the scales.