Tyson.....and ino he achieved a few great things, youngest ever champ etc....BUT when Cus died it started to slip mentally for mike and then after Buster loss he had nothing to come back with. Fully focused and trained Tyson could and would of been one of, if not the best of all time IMO. Audley Harrison, Meldrick Taylor is a good shout ICB im finding myself agreeing with ya alot these days!!