I wouldnt say Pacquiao chin is bad he has never been ko'ed by a head shot so you carnt say its a weak point.Just the fact that it is untested above 130 and he is in with a decent puncher at 140 which is gonna test it.

Hattons chin has'nt looked great in last few fights against Lazcano and he got stopped at 147 against the p4p champ so no shame in that.But i feel when Hatton is on his game and fully fit going into a fight he can take a punch alot better. He never had good build up for the Collazo and Lazcano fight and he got hurt but look at the fights he was fully fit against KT,Phillips,Urango,Ben Tackie and Castillo all big punchers and he took full shots of them and was ok.