Cotto-Tszyu @140 - Tszyu who beat Judah would have beaten Cotto, at his best at this weight he wasn't as poised and when he finally started reaching his prime he already was having trouble making 140, so Tszyu would have taken the W

Cotto-Williams @147-154 - Williams was never really a big puncher and he was a bit one dimensional, any fighter who would use his legs in there and had a good jab and right hand gave him trouble, if Quintana was able to outbox him at 147 Cotto would have done so even easier, especially with the body work, at 154 well depends when, the Williams that lost to Martinez and Lara would be beaten by Cotto, the one with the high punch output at 160 would have made it a 50/50 fight

Cotto-JMM @140-147 - would be a lot more technical than most think, Marquez would probably take a close UD at 140, Cotto would overwhelm him with bodywork and accurate counter punching at 147, too big, too strong

Vargas-Williams - Vargas would have roughed him up and just mauled him throught the fight, winning by UD or late stoppage

Vargas-Kirkland - Vargas would KO him in the mid rounds barring a "lucky" punch

Vargas-Mayweather Jr. - same as every other opponent, Vargas would try to outbox him while getting his ass handed to him throughout 12 rounds

Vargas-Margarito - the cheating fuck didn't ever amount to anything at 154, unless he had his lucky plaster wraps on hand he'd get his ass beat similar to how he did against Mosley, Pacquiao, and the man who retired him, Cotto lol