These are purely personal and perhaps don't truly rate as the greatest moments in the HW all-time list, but they are still epic in their own way.
Foreman v Moorer. Round 10
Foreman was 46 and close to exhaustion, a mile behind on points and badly bruised around the face as well. Then late in round 10 he rolls back the years and Moorer is brutally launched in La-La land. Just watched it again and the sudden and complete reversal in the fight's direction is incredible. Within 10 seconds Foreman transforms himself from a plodding, ex-champ fighting from memory and taking a cruel beating into a heavyweight king again.
Sanders v Wlad K. Round 2
Sanders did all the big damage late in round one. But the way he ripped through Wlad K in the opening seconds of Round 2 is still awesome. Brutal and exciting finishing from The Sniper that absolutely silences a massive German crowd. As usual, Corrie looks as if he was carrying a few extra pounds!!
Douglas v Tyson. Round 9
Not the hero 'historic' round which is the 10th. But Douglas gets dropped heavily in R8 by one hell of a shot....but somehow recovers when everyone else has crumbled....and comes out for R9 and lands three or four shots straight down the pipe which shock Tyson to his core. That's where Buster one the fight, he shook-off the knockdown and comes back harder and more aggressive than ever before.