Let's see, Vitali who faced numerous power punchers, and took direct KO type of shots from Lewis, Sanders, and Hide does not qualify? Vitali wanted the re-match with Lewis. Lewis said no thanks. Vitali is one of two heavyweight champions never to be floored. He certainly belongs in the conversation.
But it did get hit by Thomas hearns, John Mugabi and Juan Roldan. He was next to impossible to hurt. I voted for Chuvalo myself though, for the huge amount of punishment he could take from some of the biggest punchers in heavyweight history.
In the modern age i don't think anyone had a better jaw than Hagler.I can't ever remember him ever being really wobbled and he fought punchers like Hearns,Mugabi,Roldan and Sibson.It was difficult to believe he walked through the bombs Hearns was putting on him in that 1st Round.
Vitali was floored by Sanders in round 1. Fighting a slow, overweight Lennox for 6 rounds doesn't make him iron-chinned. And who the hell is Herbie Hide? A glass-jawed fraud. I repeat: Vitali fought no one. The fact you idiots keep naming Herbie hide is proof of that.
Here is Vitali getting floored. Go to 0:48 [ame]http://www.youtube.com/watch?v=pXRQBx9qeFg&feature=fvwrel[/ame]
I'd go with Chuvalo, because of the division and era he fought in. He absorbed the bombs of the heaviest hitters in the division's best era without going down.