This sounds sorta pathetic but....
Radiohead - OK Computer (Art Rock)
Radiohead - Kid A (Experimental Rock)
David Bowie - Blackstar (Experimental Rock)
Radiohead - In Rainbows (Art Pop)
Panda Rosa - Bioconcrete (Neo-Psychedelia)
Swans - To Be Kind (Post-Rock)
Steve Reich - Music For 18 Musicians (Minimalism)
Rokkuro - I Annan Heim (Art Pop)
The Microphones - The Glow, Pt. 2 (Avant-Folk)
Dinosaur Jr. - You're Living All Over Me (Noise Rock)
Aside from the P. Rosa release which was fairly recent; these are albums that i've kept coming back to over the years, albums that hit me on a deeply emotional level, continue to do so, and never get old or boring to me