I think it depends on your definition of "great" Cruiser - one if, if not the, best ever. Heavy - Probably in the top 20/25 of all time. If you classify top 20 heavyweights great (as I do), then he's a great heavy.
name a top heavyweight after 1990 Holy didnt fight...im racking my brain here: Tyson Lewis Moorer Foreman Holmes Bowe Ruiz Byrd Rahman Dokes his greatness is unquestionable
Wow, people debating Holyfield is anything other than great. Holyfield was the second best heavyweight post Holmes era. That makes him an ATG.
Holyfield's greatest strength has been his hubris. Not such much a cockiness, but a belief too overcome any obstacle. You could almost feel and sense it when he fought. Ironically, it might turn out to be his destruction if he steps in the ring with egg-chinned Wald :nut