IMO:
#1 Car - Fairley (esp now with Rivera at the helm)
#2 Den - Peterson
#3 Buf - ? (prolly Bowers or Dareus)
Now, I must say the game I watched Clemson play this year (South Carolina) I was a tad on the underwhelmed side with Bowers. He was handled by one Olineman for most of the day and, once he the play was away from him, he wasn't going 100%. That said he did have huge stats in the sack category this year.
I don't think any team can miss with Fairley. He's big, NFL-ready, mean and "dirty." I think the Bills could use about three of those types of guys but I'd be shocked if he fell to #3. Happy but shocked.