Favorite: Richard Linklater, Boyhood
Other nomination predictions:
1) Wes Anderson, Hugo Guinness, The Grand Budapest Hotel
2) Armando Bo, Alexander Dinelaris, Nicolas Giacobone, Alejandro Gonzalez Iñárritu, Birdman, or: (The Unexpected Virtue of Ignorance)
3) Damien Chazelle, Whiplash
4) Max Frye, Dan Futterman, Foxcatcher
The talented Nolan Brothers could eek their way into another writing nomination for Interstellar. The winner here is also an open field, but Linklater will probably win for the sheer concept and vision of Boyhood. Chazelle also has a legitimate claim as Whiplash is his first foray into the public spectacle and he got there on his own.