AFI: 10 Top 10

The American Film Institute released their list of the top movies in different genres:

Animation - Snow White and the Seven Dwarfs
Fantasy - The Wizard of Oz
Science Fiction - 2001: A Space Odyssey
Sports - Raging Bull
Westerns - The Searchers
Gangsters - The Godfather
Mystery - Vertigo
Romantic Comedy - City Lights
Courtroom Drama - To Kill a Mockingbird
Epics - Lawrence of Arabia

For the official press release with a list of the runners-up by genre, see this.