Barrera and Marquez would be extremely competitive with JCC early on. They are both very talented fighters offensively and have good jabs, but Chavez's heavy hands are going to spell the end for both eventually. JMM and MAB, as good as they are, aren't great defensive fighters and will be tasting Chavez's right hand and left hook to the body quite reguarly. I don't see either of them catching well in this fight. Barrera might get stopped, JMM I'd favour to see the distance, but lose heavily on the cards. JCC breaks you down. Not powder puff hitters at 130lbs, especially in the case of JMM, but I don't see them making any dents on JCC. He was almost impossible to hurt at these weights. Morales wouldn't get blown out or anything, but I kind of seeing it being a rough ride for him from the outset. He didn't have the discipline of the other two, and always gets dragged into a war the moment he starts getting touched. Again, Chavez isn't a one hit knockout artist, but every shot he throws hurts. Struggle to see Morales making it to the end.
Barrera and Morales were clearly past it at 130. Marquez would probably be the only one to be competitive.