Im going for Froch in this one...off the strength of two factors. For one, Froch has been only been dropped by Taylor (that I know of), simply outpointed by Kessler, and outboxed/outworked by the best fighter at 168.
Now that's not bad, especially since he's been TESTED in the ring, by fighting guys like Taylor, Kessler, Dirrell, G. Johnson (ughhh), Abraham, Ward, and Pascal's beefcake lookin' ass.
Bute on the other hand...well, what has he done? What's his claim to fame? Fighting an old Joppy? Brinkley from the contender? Numerous tomato cans? Maybe the Miranda fight will cover his record wounds. Maybe a little friendly fire with Glenn Johnson after everybody had their turn with him? Ohhh shit....let's not forget about how Mr. Librado Andrade left Bute with the "bambi legs" and got saved by the ref

I will give this one to Froch. He's felt punches from better fighters than Bute...he's just a bit slicker with his shit. Really, it's easy to look slick and precise when you're constantly sharing the ring with washed up fighters, sparring partners, and tomato cans. We will have to see how he fairs against a savvy ring bully...