I listen to what Google Music feeds me. I've never paid much attention to music. Love it. But since I suck with names already, trying to remember bands and band members and genres.... man I suck at that. So I have upvoted and downvoated songs until Google knew me better then I knew myself.
Now I trust in their intimate knowledge of me.
My favorite is... "Gave up privacy like a little bitch" I guess.
Mine is Revolution Radio by Green Day
depends on mood and season
happy (Daft Punk - Discovery)
tripping (Beatles - Magical Mystery Tour)
That's a hard question to answer due to so many great contenders.
But I suppose I would have to say Viola Intruder by Gogol Bordello
I can never answer this question. Anytime I think of an album I think of another and another. And end up never deciding on one.
Edit, ok I'll go w Why Do They Call Me MrHappy by NoMeansNo