The undefeated man against... Larry Gains. 117-22 with five draws, 63 knockouts. Wins over Max Schmeling, Primo Carnera, and George Godfrey. One of our uncrowned champs of history, and one that is sadly rarely discussed. Oh yeah, its on. Prime for prime.
I don't think much of Marciano compared to the rest of the forum, but I really can't see him losing here. Voted for Rocky by KO.
Gains was a decent fighter, but he beat a very green Schmeling and picked up a fair share of losses. He was no Harry Wills