I like Benn by knockout, Forch is too hittable and that low hand guard he used wouldn't work he's too slow.
Froch stopping Benn? Put down the crack pipe. 1. He wasn't good enough & 2. His style would play into Benn's hands. Benn close but clear UD.
I could see either guy winning. Mostly I envision a close or split type of decision, either way. I guess forced to pick I might edge Benn, but with no confidence in either guy totally dismantling the other.
Very similar to Eubank 1. Carl was more skillful than Eubank and just as resilient. Froch by stoppage in 10.