I have no doubt in my mind that Lewis, Foreman and Tyson would all have found Wlads china chin at some point and knocked him out. Ali and Holyfield are more difficult to say but I'd say Ali would still win the majority of the time.

The problem is that Wlad is so utterly untested thanks the awful opponents he's had to fight against in this poor era of heavyweight boxing. It's unfair to say he sucks compared to champs of other eras because he's not had a chance to prove himself against opponents like the others have.

oh and Holmes also beats Wlad but by UD I reckon, Larry had skills.