Jack Dempsey v Harry Wills; to see what would have happened had the colour bar been lifted.

Roberto Duran v Manny Pacquiaio at lightweight. What a war.

Sonny Liston v Rocky Marciano. I wonder?

A Hearns v Leonard rematch the year after their first fight. Ray avoided this for a long time

Hagler v Monzon. 'Nuff said.