I wouldn't really consider some of those fights 'Wars'
Sure he got tagged for a few rounds against Judah but so have most fighters that have faced Judah. He handled Judah for the rest of the fight. Mosely, again we saw Cotto display some good boxing skills and although it was a competitive fight I feel the word, war, would be misplaced if we were describing that fight.
Cotto just needs to keep doing what he's doing. He's still got a lot of shelf-life and he'll last longer than somebody like a Hatton because he has shown better boxing skills. The first real war I imagine he'll possibly get into is against Antonio Margarito.