Alvarez is slowly proving himself and winning me over. Believe me beating Shane Mosley is no ordinary feat. He packs quite a punch as well. Body work is just terrifying. Paul Williams is very hittable but you have to be able to take a punch to give one or two back.
It would be a good test for Canelo, another stepping stone. i don't see Williams redeemimg himself here
The thing is, Williams does not have great punching power. When up close he throws pit-pat punches, just look at the Lara fight. While he may be piling up points, Canelo will gradually slow him down and stop him.
I really can't see any way, shape nor form in which Canelo could lose other than by robbery or cuts.