Manny has an ATG chin! Floyd got rocked by 2 right hands from Mosley.. Who do you think has the better chin?
Pacquiao's chin is phenomenal, lets be honest...I don't know what he's been taking but the punishment he has accumulated will catch up with him (e.g. Ali).
how many times has manny been KOed or knocked down? how many times have floyd been KOed or knocked down? ... OK den
Mayweather took solid flush shots from DLH at 154 in his first fight there. Not to forget the shots he took against Mosley, Hatton, Judah, Mitchel..etc Pacquiao has taken shots and exchanged with the likes of Barrera, Marquez, Morales, Cotto, Concheato, Larios(HUGE punch he took in round 3), Hatton and whoever else I'm missing. The winner is Pacquiao. Mayweather isn't exactly easy to hit to be compared with Pacquiao's fighting style, so Manny proved his chin more in my opinion.