I go with the naturally bigger Quillin, Canelo isn't aggressive enough and Quillin still has punching power and a stiff Jab to keep Canelo at bay.
Canelo is more talented, has better skills. But Quillin can fight a bit and noone knows how Canelo takes a punch from a hard hitting 160lber yet.
In before Win/Lose Vs. Lara "Canelo" gets a middleweight championship fight in his first fight @160 :deal I'm in before the bitchin' begins in early '15
I remember Canelo getting seriously buzzed by a career 135lbs and even though he's faired strong I still have my doubts though they have subsided.