If I had to pick one band over all other bands?
Green Day.
It's the only band that has music that can fit pretty much any mood I have, and also just one that I always want to be listening to
something by them. I also just adore Billie Joe Armstrong, Mike Dirnt, Tre Cool and Jason White.
It's seriously to the point where a potential significant other would lose
serious points if they hated Green Day.