At the highest level in boxing it is difficult to say for certain how fighters would match up against each other. Wlad has a pretty unique style and the flaws he once had have been greatly reduced
I think Wlad stands a far better chance against Foreman, Ali and Holmes than he would against Tyson, Frazier and Lewis. Maybe that is controversial but I think young Foreman is a bit overrated here and Ali and Holmes are better style matchups for Wlad