To quote Mike Tyson "You can get a heavyweight that Cannot Even Hurt you, and a much lighterweight that can "KILL" you with punches" Naseem Hamed use to spar with Heavyweights, and they all claimed he hit very hard, he was a (super featherweight). There is to much focus on Bigger giving a huge advantage, so you assume Manny Pacquaio should lose to Bigger guys. And if he doesnt its obviously steroids... bla bla bla Exceptional Ability > Weight advantage.
Pac ain't conquered the welter, not until he fights and beats Shane at 147 lbs. Shane is The Man at 147.
Marquez cracked Floyd on the jaw like 5 times in their fight, and it did nothing. Why can Pac do it and not Marquez? Is Pac super-human all of a sudden?
Fact is PAC knocked MARQUEZ down 4 times in their 2 fights, while MARQUEZ cannot. I guess that spells the difference in their PUNCHING powers. :hat