Bands who never get enough airplay: Okkervil River.

Black Sheep Boy and its Appendix are, I think, generally regarded as their best work, musically speaking.  I actually agree, but my favourite is The Stage Names, so.  This may not objectively be their best work, and is actually not even the song I had intended to upload (Tumblr wouldn’t let me post the other one) but I like it.