I want to see Froch/DeGale the most. Froch/Chavez is only tolerable because then that's one less cash cow for other fighters (i.e. Ward) to chase. It will be funny to hear how Ward reacts as he commentates during the bout.
I would love to see Froch vs GGG. Especially since GGG will run out of options at 160 if he beats Geale (Cotto won't fight him, Quillin and Canelo are on Showtime).
Chavez Jr. would be a good battle but JR feels a little irrelevant at the moment. Wouldn't complain about JR, but I think a Degale fight is more interesting.
Chavez and I wouldn't mind Kessler 3 to be honest
I'd imagine Chavez is the one he's hunting. Most winnable and best money though personally I'd like to see him fight GGG