Juan would abuse Pac... Yeah, David seems more likely...but David has a chance against the lighter Pac...
I was going to post this but you beat me too it. The baby bull would run Pac out of the ring. This would be a great fight and needs to be made.
I'm a Pac fan, but I do believe that Juan would give him trouble and is all wrong for him. I've said in the past that in order to beat Pac, you have to keep him fighting backwards. Get on the inside in the trenches and work the body. Pressure Pressure Pressure. Juan has that style that "could" beat Pac. Also, it doesn't hurt being naturally bigger, having quick hands, high work rate, and excellent defense in the trenches(which was the difference tonight).
Pac needs to get the 4th belt from David Diaz then they can make the real unification with Juan Diaz. While pac is Busy with David, Juan should Clean-up the Old Casamayor since he said that Pac should stop Fighting old guys. In case of JMM, He needs to give what Pac wants or else he will be the forgotten man again. He's the oldest guy & the Mexicans are tired of waiting for their Hero.
I'd love to see this fight but I would not hold ti against pac if he doesn't take it. I think 130 might be his limit and he would be giving up a lot to Juan if they ever fought.