I think Moorer was generally good at recovering from being hurt. The Tua KO was closer to the end of his career and Foreman actually had landed a lot of heavy rights throughout the fight before the final two 1-2s (although he exaggerates the extent to his game plan). He rose from a 2nd round KD to beat Holyfield, got dropped 5 times in the rematch and rose every time. Cooper dropped him twice in the first 3 rounds, the fight looked over 30 seconds in, and Moorer came back to win that one. Stewart had had hurt in the 2nd round and Moorer stopped him two rounds later. I think Moorer could withstand the early onslaught.