no. pac is at most a light-welter at weigh-in and a small welter during fight time. his speed will considerably diminish at weights above 150.
No. I don't think he would have much of a chance against big, prime welterweights and lightmiddleweights like Margarito and Williams, so middleweight is definitely out of the question IMO.
Pac v Pavlik.....:think..... No, I think MW would be a bit of a stretch for him; I also think there are a number of prime WW's that, regardless of Saturday's result, I would still favour to beat him.
To be honest, though...if Pacquiao keeps winning...i wouldn't be surprised if he took some matches at 154 against some big, big guys. But he will have to get past Hatton first, which I am unsure he will be able to do.
He could go up to Light Heavy if he wants to, but that doesn't mean he can beat anybody there..... Don't believe the hype - Buy American!!!!