Chavez naturally too big and was actually more skilled than people think. Pac wouldn't hurt him whereas I think Chavez could hurt Pac and very badly to the body. As we saw in the second Marquez fight, Pac got hurt to the body a few times throughout and Chavez was much more constant on the body and had a harder left hook to the liver. I think it would be a knockout for Chavez. Too big, too strong, too much all 'round.
prime chavez is a junior welterweight.
prime pacman (physically) is at featherweight and super featherweight.
bad matchup.
Prime Chavez is a Jr Lightweight. He was better at that weight than he was at 140.
Chavez by knockout, too big and that body attack would get to Pacquiao as the fight goes on, Pacquiao's speed and movement would give Chavez trouble though.