I would say Mike Moorer. This is, of course, a joke post, but he got floored by a punch that didn't look to have a great deal of "steam" behind it
Marcus Rhode has to have the worst chin of any heavyweight I've seen. Not only could Foreman KO him with a jab: Chris Byrd would have a shot as well!
Bruno only got floored by big punchers .....[ Jumbo Cummings , James bonecrusher Smith , Whitherspoon , Tyson , Lewis ]
The truth Williams had a pretty weak chin as well. Too bad because he was a fine boxer who gave Holmes hell.
franks chin wasn't that bad, he just used to panic when put under severe pressure and gassed in the later rounds. he took a pounding by lewis by was still on his feet when the fight was called off.
The question is worded wrong. If we are talking about championship boxing, i would probably say Moorer or Bruno. However the worst HW chin in the world would be someone rock bottom of the boxrec ratings, such as 'Babybean'
Not as bad as Herbie Hide, Hide would have passed out against Tyson from the sound waves of the first bell