You really believe he's the only one? Your hero is still on PED's and couldn't punch his way out of a wet paper bag....
canelo hits a lot harder than pac, specially with his SMW fight night weight against pac's 147-150 fight night weight. It's just that Pac hits his opponent's to areas they dont expect, well, except you're a great hugger and runner.
Speed kills. Pacquiao was kind of fast, you know. Canelo - well, he was the faster man in the ring against Tata Baldomir.. :!:
If you ask Matthew Hatton and Lovemore N'dou (both natural welterweights) they will tell you Kell Brook hits far harder at welterweight than Canelo does at Jr Middleweight. And it's obvious to Brook is hurting them more from the fights, so it wouldn't suprise me if Pacquiao did.