Prime for Prime, I think Wlad tko's Tyson. Tyson looked amazing against low level opponents cuz he was carefully matched and the hype worked pretty well.
Lennox Lewis and maybe Ike are the only heavyweights that would beat Wlad in a prime for prime fight. Actually Lennox TKO'd 6
a prime Vitali , who was a superior fighter than his brother , not to mention about his (Vitali) strong durable chin.