My favorites are

BSBD - Late Night Cinema + B

Brian Eno - Apollo/Discreet Music

Aphex Twin - Selected Ambient Works 1 & 2

How To Dress Well - Love Remains

Toro Y Moi - Causers of This

Fennesz - Endless Summer/Venice/pretty much any of his stuff

Biosphere - Substrata

Hammock - Stranded Under The Endless Sky/Kenotic/pretty much any of his stuff

and
DJ Shadow/RJD2
and
Memoryhouse really needs to put out some more music.