Kessler rematch definately. If not take Bute out. Forget about Sergio. Froch is starting to have to work much harder to get to 168 from what ive heard so he aint going to be doing a catchweight, weight he's going to be fighting at after Bute and Kessler is 175.
Bute. I reckon Froch handles him fairly comfortably, I have seen Bute look very uneasy under pressure and he doesnt have the dancing abilities of Dirrell. Hopkins just isnt worth the risk at this stage, theres nothing to gain by beating him, Martinez is too small probably, so Bute makes the most sense.