Fun fight, even moreso closer to 147 although, cotto would be foolish to allow this lower than 152. Cotto should beat him up but he always tends to surprise us in these kind of fights.
I got Cotto by UD. Cotto outboxes him. Cotto will have the slight size advantage but not by much. Cotto is 5'7 with '67 reach. Ruslan is 5'6 with '66 reach. Its been a while since Cotto fought a guy smaller than him. Martinez, Geale and Canelo(monster) were all bigger. Ruslan will get out boxed. Its been done. But he is tough as nails so anything can happen.