Oscar is by far the harder fight for a number of reasons. I think he was bigger, faster, & stronger than Cotto is. I think Floyd was obviously younger & more in his prime but Floyd was also more smaller & clearly had less strength at that time. He was seen as kinda weak at 140 and espically at WW at the time. Now you see him as no one at WW can really bully him.
Floyd is just more equipped for 154 right now. Natually bigger & stronger than before. I think Floyd was a lil fearful in the Oscar fight. Not knowing if he can handle a bigger man for sure, very scared to get hit by the Oscar hook because he wasnt sure if he could take the punch, and so on. Made him fight very cautious. He wont be like that this time