Wow- big question! I have well over a 1000 titles in my personal collection- since I've been collecting since 1997 when I first bought a DVD player...
It also depends on the sort of mood I'm in...
Drama: Shawhshank Redemption, The Right Stuff, Godfather
Action/ Adventure: Avatar, Raiders of The Lost Ark, Gladiator
Comedy: Blues Brothers, Any Monty Python Film, A Fish Called Wanda
SciFi: StarTrek 2009, Matrix, Star Wars 4-6
Fantasy: Lord of The Rings Trilogy
Superhero: Spiderman, Batman Begins
Animated: Heavy Metal!
Biography: Schindler's List, Braveheart, The Pianist
Family: Toy Story, Ice Age, I Am Sam
Musical: Grease (Olivia Newton John's black tights in the closing scene!
)
Mystery: Usual Suspects, The Sixth Sense
Spy: Any James Bond Flick starring Sean Connery, Bourne Trilogy
War: Saving Private Ryan,
Apocalypse Now
Western: Brokeback Mountain! :roll: LOL (Just kidding, never seen it...) The Good, The Bad & The Ugly hands down!
Porn: Anything by Viv Thomas!
To name a few...