Interesting... nobody seems capable of nailing down a favorite song except me. That's pretty much what I expected everyone to say. As for myself, I'm glad to have found my own auditory holy grail, though I should point out that I'm not like this with all my music, only certain songs that seem to reach down into my very soul and pull my consciousness into a whole nother realm, like a fisherman getting dragged out to sea by his line... or something. You know what I mean.
All my other music, I listen to according to my mood.
"No thanks, I think I'll stay outside in the cold, where I can still see the stars."