Auburn,because it helps LSU's s.o.s.I always root for SEC teams in intersectional games because it gives the conference more credibility when they win.
Auburn beating USC the SEC look good. USC beating Auburn will be the first nail in their coffin. As much as I want the SEC to look good, I find that I am incapable of cheering for Auburn. I hope USC destroys Tubbies' fighting canaries.
I pull for every SEC team in out of conference games unless they're playing against the big blue Michigan Wolverines.
This is a very difficult choice. As much as I dislike auburn and tubby, and would love to see them lose any game, they are SEC and it does make the SEC look a whole lot better (in the long run). So, I will be pulling for the war buzzards(yyuuuuuuchhh)!!