On their very best night who wins the all time heavyweight prizefighter competition?

[Dark Lord Al]

I was trying to think of when 2 really good heavyweihgts fought and there was vast difference in size and the small guy won?

Spinks vs Cooney
Holyfiled v Bowe II

Both of them must've been giving away 30 + pounds?

A semi retired Gerry Cooney was not a really good hw. he was shot.