I hope the New 52 stuff doesn't get used too much. New 52 JL is just horrible, and the first arc was really boring also. Hopefully this sells/reviews poorly so they go back to adapting good stuff.
Well, the good thing about an adaptation is that they have a chance to change and improve aspects of the original work. For all my problems with the Superman/Batman: Public Enemies
movie, the original comic was worse in a lot of ways, though better in a few ways (as I discussed here
I actually love the Public Enemies movie (I never read the comic it was based on). I can't really pick a favorite with the DC animated movies, but S/B: Public Enemies was one I really enjoyed.