Best Picture

So I know we talked about Benjamin Button in another thread, but I was curious about the Best Picture nominees for this year's Oscars. I saw Benjamin Button, and it was good. I did not see The Reader, Slumdog Millionaire or Frost/Nixon (really want to see that one). I did see Milk the night before the Oscars and it was really good. Sean Penn earned that Best Actor Oscar. But I was haven't really heard that much from people I know about the Best Picture nominees this year. Has anyone seen any of the others? Are they any good?