Random Access Memories - a great bunch of pastiches of late 70s/80s styles with some great songs and great guests. Not something I put on much anymore but it's very good
Comus - I remember hearing this and it seemed very interesting although the guys voice was kind of annoying. Gotta return to it soon
Quadrophonia - was never a fan of this one much. They took the overblown arena rock of Who's Next and turned it up to 11. Some great songs here but bloated and overlong and a concept I really never followed or cared about. I preferred Who By Numbers.