Best Picture-
Will win: The King's Speech
Should win: The Social Network
Should've been nominated: The Ghost Writer
Best Director-
Will win: David Fincher- The Social Network
Should win: David Fincher- The Social Network
Should've been nominated: Roman Polanski- The Ghost Writer
Best Actor-
Will win: Colin Firth- The King's Speech
Should win: Javier Bardem- Biutiful
Should've been nominated: Edward Norton- Leaves of grass
Best Actress-
Will win: Natalie Portman- Black Swan
Should win: Natalie Portman- Black Swan
Should've been nominated: Julianne Moore- The Kids Are All Right
Best Supporting Actor-
Will win: Christian Bale- The Fighter
Should win: Christian Bale- The Fighter
Should've been nominated: Edward Norton- Stone
Best Supporting Actress-
Will win: Mellisa Leo- The Fighter
Should win: Mellisa Leo- The Fighter
Should've been nominated: Milla Jovovich- Stone
Best Original Screenplay-
Will win: The King's Speech
Should win: The King's Speech
Should've been nominated: Stone
Best Adapted Screenplay-
Will win: The Social Network
Should win: The Social Network
Should've been nominated: The Ghost Writer
Original Score-
Will win: The Social Network
Should win: The Social Network
Should've been nominated: The Ghost Writer
Original Song-
Will win: Toy Story 3
Should win: Toy Story 3
Cinematography-
Will win: Roger Deakins- True Grit
Should win: Matthew Libatique- Black Swan
Should've been nominated: Anthony Dodd Mantle- 127 hours
Editing-
Will win: The Social Network
Should win: The Social Network
Should've been nominated: Inception
Sound Editing-
Will win: Inception
Should win: Inception
Sound Mixing-
Will win: Inception
Should win: Inception
Should've been nominated: Stone
Visual Effects-
Will win: Inception
Should win: Inception
Art Direction-
Will win: Alice in Wonderland
Should win: Alice in Wonderland
Should've been nominated: The Ghost Writer
I won't be predicting the categories of animated film, foreign film, documentary, costume design and make up because I haven't seen all of the nominees. Even If I did, I wouldn't be sure.
EDIT: Result- 14/16. Didn't expect Inception to win for cinematography and The King's Speech to get more praise than it deserves.