After so much weird stuff last weekend, I sort of expect a regression to the mean, a/k/a most favorites win this weekend.
But in the spirit of the thread, I'll go with Mississippi beating Auburn, though I don't know how much of an upset that will be. A team with a clueless offense meets a team with an inept defense. And a very good WR corps / QB goes up against a set of DBs that have decided to just hold on every down thinking the zebras will get tired of flagging them. It could set football back 15 years.
I'd also have a lukewarm pick of MSU over LSU. LSU is playing its 7th in a row, is due for an emotional let down, is probably looking past this to the off week/Alabama future, may take MSU for granted, and MSU had last week off to rest and prepare. If it was in Starkville....