None of those three are what I would call great movies. Then again, I don't think much of about 7/10 of the Best Picture nominees. Flight, Django Unchained, and (by quite a large margin) Zero Dark Thirty are the only films I've seen this year that I've truly liked.
I loved TDKR but I didn't think it was as good as TDK. Skyfall and Hobbit were great as well but not Oscar-worthy in a few of the major categories...I've seen only Argo in the Best Film category and can honestly say I drove out of that movie (b/c I saw it a local drive-in theatre) thinking it was the best movie of the year I had seen...I didn't get that feeling after seeing The Hobbit, TDKR, The Avengers, Spiderman, and Skyfall. Nonetheless, they are all still great movies