Pain in the arse question trying to pick one. This is as far as I can narrow it down, in no particular order:
William Basinski - Vivian & Ondine
Elliott Smith - Figure 8
At The Drive-In - Relationship of Command
Brian Eno - Ambient 1: Music for Airports
Radiohead - Kid A | Amnesiac | In Rainbows
Labradford - Mi Media Naranja
Sigur Rós - ( )
Sharon Van Etten - self-titled
Mono & World's End Girlfriend - Palmless Prayer/Mass Murder Refrain
Godspeed You! Black Emperor - Yanqui U.X.O.
My Vitriol - Finelines
Stars of The Lid - The…