Pacquiao would KTFO Guzman. Guzman is skilled,but he doesn't have the power to fend off Pac nad doens't have the movement to outbox him. Just because Guzman beat Barrios doesn't mean anything.And JMM is as skilled if not more so than Guzman and Pac did ok against him.Even if Guzman can take his best,Manny seems to be at that stage where nothing can distract him,he'll just keep banging away and with all these new moves he has learnt(counters etc etc) he is getting better each time he steps into the ring. What proof is there that Pac is dodgin Guzman when he fights Morales,MAB,JMM etc etc. You can also see Manny studies tapes HARD,going to Erik's body,countering him when he was off balance,I'm sure Roach would find flaws in Joan too.

I do belive Valero is too green and would get KTFO at this point in time but give him a year or 2.As for Barrios,it would be exciting but does Barrios have the power to hurt Manny? Manny's shorter more accurate punches would make it difficult for Barrios.