I've never seen it. But I own the soundtrack. sweatdrop
Also never read the book. And I own that too. sweatdrop sweatdrop sweatdrop
Favorite character would have to be Elphaba. I just really relate to being an outcast and trying to break outside of it. Though I don't think I'm succeeding.
As for my favorite song, well besides Defying gravity and For Good, is (oodly enough) March of the Witchhunters. Weird right?