Lemieux hardly landed in that fight at all. The 2 times he landed a decent shot it hurt GGG. I can't wait until GGG fights a puncher that can actually get past a jab.
Ggg has a granite chin. It also helped that he has great balance at all time so that help with his ability to withstood punches. He took a couple of big punches last night when Lemieux unloaded, but because of what I stated he walked through it.
No, I don't think any fighter same size as Ggg can clinch or outmuscle him. He's simply too strong, it all goes back to his balance and conditioning. Murray was an example, as soon as Ggg knew it was Murray's game plan he would use his head to block Murray's chest or turn to prevent the clinching, watch again to c what I'm talking about. And Murray is way bigger than Ggg.