Canelo by knock out in 2013 or onward . 2009 manny would have been a fun / good fight to watch though
The Prime Manny who ripped through the WW division wins, not so sure about right now, I'd say Canelo if I was to bet on it.
Gingerboy doesn't have what it takes at the top level against the true legends of the sport. Love him or hate him pacman has fought as many world champions as floyd and is vastly more experienced at that level. Canelo has very little headmovement against a speedy opponent and imo is gonna get punished by pac. He wouldn't know what to do when he realizes that Pac can actually take his power and dish out combos back to his face. Just my 2 cents.
The Pac that fought Cotto, Clottey and Marg would beat Canelo, imo. The one that fought Bradley and JMM4 would possibly lose. Fighting after JMM KO'd him, hard to say.