I think LSU is a lock if they make it to the SEC CG, regardless of if they win or not (see OU in 2003). Their resume is impressive enough. I also think they will steamroll Arkansas, who is overrated. I think they'll likely steamroll their opponent in the BCS CG too.
It is going to be VERY interesting to see how things pan out and the spin doctors spin if OU wins out and beats OSU in Stillwater. There is not a clamoring from fans or voters for a rematch with Oregon or Bama, and it wouldn't really be fair to LSU to give them one either, even though they will be playing a virtual home game in New Orleans. OU, however, has by far the worst loss of the bunch at home to a crappy Taco Tech team. Strangely, it could help them though, as voters tend to chalk it up as an anomaly. The computers don't like the loss, but the computers like the Big XII. Personally, I don't think OU will win out without Broyles so it may be a moot point. It will be interesting to see how their offense performs in the next few weeks without him. He has always been a crutch for Landry Jones.