Well let's see if I can help you out Lionheart

Jack Dempsey-Jess Willard (Dempsey is 180-190 pounds and Willard is 6'6 245)
[youtube=425,350]tFHAFNTjcSE[/youtube]

"Big" George Foreman Highlite (one of my favorites ever)
[youtube=425,350]jvirljx6ob4[/youtube]

Joe Louis-Max Schmelling
[youtube=425,350]5DQkX5RDke8[/youtube]

Rocky Marciano highlite (he's 185 pounds)
[youtube=425,350]Wcwalp0TRfc[/youtube]