Good fight for sure, I think Miller takes it. I don't think this should be a #1 contender matchup. Miller deserves a title shot if he wins, he's on a six fight win streak over some really good competition. Florian however, is 2 - 2 in his last 4 fights, and we've already seen him lose to Maynard; a fight against Edgar wouldn't be much different.
Kenny doesn't seem to be able to work off his back (outside of throwing elbows) against good wrestlers.