Movies:
Scott Pilgrim vs. The World (I heart it soo much)
Jurrassic Park (imo the perfect popcorn movie)
Serenity
Ghost in the Shell (my first "genuine" Anime Experience, still one of the best)
National Lampoon's Christmas Vacation (well, if it's Christmas)
The Fountain (i don't care if it's pretentios or not, it's both pretty and moving and has the most awesome score of all time)
Requiem for a Dream (Weirdly enough, given that it depresses me more than anything. Due to repeat viewings, i've "got over" most of the film, yet the ending still shakes me up)
Airplane!
Fight Club
and weirdly, Repo! The Genetic Opera
I don't even like about half of the songs, and it feels to slapsticky at times, but i love it's distinct style, some true showcase direction in some songs, how it completely blown my expectations (mainly the one that it sucks and that Paris Hilton makes every movie unwatchable), how it is actually more an opera than a musical and that there is just a lot to it.
As for TV Shows:
Futurama
Simpsons (The "good ones")
Family Guy (The "good ones")
Cowboy Bebop
Samurai Champloo
The IT Crowd
South Park
and, of course, Firefly