I actually think Canelo might be a tougher fight for Floyd than Manny. Manny just seems to small for Floyd and it's a style mismatch on top of that. Alvarez is very patient, doesn't rush foolishly into his attacks and has legit KO power with a strong chin (he sparred and was able to hang with Golovkin where as Julio Chavez and Alfredo Angulo were ran out of the gym). Forget about that brief instance where he got stunned by Cotto's brother. That was a long time ago and he's been tagged by bigger bader guys since then, Cintron being the most recent. And unlike Mosely, Alvarez has the balls and heart to go after Floyd and kill him. And unlike Ortiz, he doesn't have a track record of quiting in fights.