Who do you think had the best record? I think Marciano. He's the only one to have a perfect, undefeated record. His record was 49 wins, 0 lost, 0 draws, 43 knock outs. He was knocked down only twice in all of his fights. The first time was against Jersey Joe Walcot in their first fight, first round in 1952. The second time was his last fight against Archie Moore in 1956.