Trinidad by stoppage mid rounds. Cotto was a good fighter but at Welterweight Tito was a huge puncher. He had that precision. With Miguel's style of crouching he would not fair well under those hooks and uppercuts.
I also say Trinidad by stoppage. Cotto struggled against fighters who pressured him, like Torres and Margarito. Tito was superior to them, more accurate and faster, had better timing, and was very powerful. Cotto had better footwork than Tito and could have won the early rounds, but then Trinidad's pressure and power would have been decisive. Here I say Tito by late stoppage.
Trinidad KO man... cmon Tito always started shakey so Cotto could score a flash KD on him. But Tito is bigger than Margarito, more skilled and hit like a truck. He walks Cotto down and stops him