Wow... it's really hard to choose, as I tend to cycle them around.
At any point it could be
Queen - Queen, Queen II, A Day At The Races, A Night At The Opera, or Jazz
The Beatles - The White Album
Styx - The Grand Illusion
Garbage - Garbage, and Gv2.0, (and select songs from Beautiful and Bleed Like Me)
And, honest to God, Milla Jovovich - Divine Comedy