I am resisting defending Bjork, I happen to be an odd duck who digs her stuff - I can live with it! I used to have a poster of hers in my room at university, the giant one of just her face, same as the album cover for Debut. Love the Sugarcubes, and Debut, though it rapidly gets odd thereafter, I still like some of it.
I have listened to the Tragically Hip since the 80's, but for me their stuff after the late 90's has gone odd places. I love their old bar band days.
+1 on Zappa, Neil Young, The Grateful Dead, Patricia Barber.
Cassandra Wilson - I really wanted to like New Moon Daughter, but for the life of me I cannot listen to it through.
As for Rave/Trance/Techno/Progressive etc - I would say it is a state of mind. Used to be fun clubbing, now great for riding my bike on the trainer.