My top tens(note that each of these lists is probably a bit wrong for my future prefrences.)

Music Top 10:
1. The Beatles
2. The Beach Boys
3. Queen
4. Bob Marley
5. Led Zeppelin
6. Daft Punk
7. Jimi Hendrix
8. The Postal Service
9. The Sex Pistols
10. Modest Mouse

Top 10 Albums:
1. Pet Sounds - The Beach Boys
2. Sgt. Pepper's Lonely Hearts Club Band - The Beatles
3. Led Zeppelin IV - Led Zeppelin
4. Revolver - The Beatles
5. White Album - The Beatles
6. Abbey Road - The Beatles
7. Legend - Bob Marley
8. The Jimi Hendrix Experience - Jimi Hendrix
9. Discovery - Daft Punk
10. Never Mind the Bollocks, Here's the Sex Pistols - Sex Pistols

Movies Top 10:
1. Reservoir Dogs
2. Pulp Fiction
3. Fight Club
4. The Prestige
5. Donnie Darko
6. Eternal Sunshine of the Spotless Mind
7. Full Metal Jacket
8. The Lucky Number Slevin
9. Monty Python and the Holy Grail
10. Hot Fuzz

TV Shows Top 10:
1. Firefly
2. Its Always Sunny In Philadelphia
3. Dexter
4. Who's Line Is It Anyways?
5. Spongebob Squarepants
6. M.A.S.H.
7. Adventure Time
8. My Little Pony: Friendship Is Magic
9. Weeds
10. The Big C

*all lists are subject to change.