I've always gone for Frazier in this one but concede Marciano could quite possibly knock him out. What a fierce encounter.
Frazier himself conceded that Marciano was the greatest under Joe Louis and that he himself was 3rd, He stated that Marciano punched the arms and shoulders and he felt would Ko Ali also. A beautiful matchup and a fight fans fantasy, Marciano KO's Frazier by the 10th in a blazing battle