Lennox Lewis. Getting knocked out by McCall and Rahman is nothing to be ashamed of. Sure Okinwade dropped him and Briggs stunned him, but it's nothing to be ashamed of Lennox had a great chin. Just watch the Mercer fight. If you judge by the Mercer fight, Lennox had a better chin then Tommy Morrison, who is p4p one of the best Heavyweight chins of all time.