Styles makes fights. It's style that made Pacquiao have competitive fights with Morales and Marquez. And it's style that made it so easy for him to destroy Barrera. When you get to that level style starts to matter a whole lot. You have a classic pressure fighter against a guy who it's pointless to pressure. Pac by TKO.
Can't really see Chavez hurting Pacquiao. Chavez was more of an accumulation puncher who relied on constantly banging and wearing down his opponent. He won't be constantly pressuring Pacquiao because the Pac left hands will have him backing off.
Dont know if pacs body would hold up against a body attack against a prime Chavez Sr.. Margarito is no Chavez Sr.
The later 140-147 version you have case, the 130-135 will begin to walk through the limited version of Pac from the mid to later rounds.
Pac's body is granite. I know, I know, he was KO'd by a body shot early in his career when he was malnourished. But those two 165 pound Margarito bodyshots were as flawless and full leveraged as body punches could possibly thrown and pound for pound in terms of force, most likely harder than any body punch JCC Sr. has ever landed. It's the only time I've seen Pac "run" from someone for survival. Bradley and Roidquez have both ripped hellacious body shots on Pacquiao to almost no effect. Horn, who looked like a Super Middle, also landed a direct body shot that should have folded Pac.
Pac's inside game is still garbage as he tends to turtle up and wait for his opponent to stop firing. Chavez wouldn't let him breath. Chavez late TKO.
Pacquiao is extremely difficult to pin against the ropes... And people pay for pinning him against the ropes.