IMO Vargas is slower than Ginger....and LESS violent when throwing combination... SO I see Cotto training punches with Vargas more often than he did with Canelo...having some success but eventually Vargas size, strength, combination, cojones will be to much and he overwhelm and exhausted Cotto. Vargas by TKO 9
Vargas would be too big and too strong. And he had a good skill set too. Cotto might be able to stun Vargas with some punches once or twice but not enough to hurt him seriously, much less get him into any type of real trouble. Vargas would break him down and stop him in 10.