Nice to see that somebody still is paying attention to this thread, thank you Happy Knappy!
So is this MP's favourite album list:
13th Floor Elevators - The Psychedelic Sound Of (1966)
Mose Allison - The Best Of Mose Allison (1970)
The Allman Brothers Band - At Fillmore East (1971)
The Allman Brothers Band - Eat a Peach (1972)
Amon Düül ll - Tanz der Lemminge (aka Dance of the Lemmings) (1971)
Aphex Twin - Selected Ambient Works vol. 2 (1994)
Art Ensemble of Chicago - Les Stances à Sophie (1970)
Beatles - Revolver (1966)
Beach Boys - Pet Sounds (1966)
Bevis Frond - Inner Marshland (1987)
Black Sabbath - Paranoid (1970)
Blue Cheer - Vincebus Eruptum (1968)
Blue Öyster Cult - Secret Treaties (1974)
Graham Bond - Love Is The Law (1969)
David Bowie - Hunky Dory (1971)
Edgar Broughton Band - Wasa Wasa (1969)
Jeff Buckley - Grace (1994)
Tim Buckley - Lorca (1970)
Byrds - Sweetheart Of The Rodeo (1968)
Can - Tago Mago (1971)
Can - Future Days (1973)
Captain Beefheart and The Magic Band - Trout Mask Replica (1970)
Captain Beefheart and The Magic Band - Lick My Decals Off, Baby (1970)
Caravan - In The Land Of Grey And Pink (1971)
Cheap Trick - Cheap Trick (1977)
Alice Coltrane - Universal Consciousness (1971)
John Coltrane - A Love Supreme (1965)
Pascal Comelade - Traffic D' Abstraction (1993)
Cream - Disraeli Gears (1967)
CSN&Y - Deja Vu (1970)
Miles Davis - Kind Of Blue (1959)
Deathprod - Morals and Dogma (2004)
Deep Purple - Live in Japan (1972)
dEUS - Worst Case Scenario (1994)
The Dillards - Live... Almost (1964)
Dinosaur jr. - You're Living All Over Me (1987)
Donovan - Fairy Tale (1965)
The Doors - The Doors (1967)
Nick Drake - Five Leaves Left (1969)
Steve Earle - Train A Comin’ Steve Earle (1995)
Eric Dolphy - Out to Lunch (1964)
Brian Eno - Music For Airports (1978)
Eric's Trip - Love Tara (1993)
The Faces - A Nod Is As Good As A Wink... To A Blind Horse... (1971)
Faust - Faust (1971)
Fleetwood Mac - Then Play On (1969)
The Flying Burrito Brothers - The Gilded Palace Of Sin (1969)
Free - Highway (1970)
Robert Fripp - Exposure (1979)
Robert Fripp & Brian Eno - No Pussyfooting (1973)
Funkadelic - Maggot Brain (1971)
Fushitsusha (Keiji Haino) - Live I (1989)
Genesis - Selling England By The Pound (1973)
Gong - Flying Teapot (1973)
Gong - You (1974)
Grand Funk Railroad - Live Album (1970)
Grateful Dead - Anthem Of The Sun (1968)
Grateful Dead - Workingmans Dead (1970)
Peter Green - End Of The Game (1970)
Groundhogs - Who Will Save The World (1972)
Keiji Haino - I Said This Is The Son Of Minimalism (1995)
Hawkwind - Doremi Fasol Latido (1972)
The Jimi Hendrix Experience - Are You Experienced? (1967)
The Jimi Hendrix Experience - Axis Bold As Love (1967)
The Jimi Hendrix Experience - Electric Ladyland (1968)
Humble Pie - Rock On (1971)
Hüsker Dü - Zen Arcade (1987)
Iron Butterfly - In-A-Gadda-Da-Vida (1968)
Jefferson Airplane - After Bathing At Baxter's (1967)
Joy Division - Unknown Peasures (1979)
King Crimson - Larques Tongues In Aspic (1973)
Kiss - Alive II (1977)
Led Zeppelin - Led Zeppelin I (1969)
Led Zeppelin - Led Zeppelin [IV] (1971)
Love - Forever Changes (1967)
H.P. Lovecraft - H.P. 2 (1967)
Jörg Mager Trio - Deathprod recording The Jörg Mager Trio (1995)
The Mahavishnu Orchestra - The Inner Mountain Flame (1971)
Yngwie R. Malmsteen - Yngwie R. Malmsteen's Rising Force (1984)
MC5 - High Time (1971)
Mercury Rev - Yerself is Steam (1991)
Charles Mingus - The Black Saint and the Sinner Lady (1963)
Joni Mitchell - Blue (1971)
Moby Grape - Moby Grape (1967)
Mogwai - Rock Action (2001)
Van Morrison - Astral Weeks (1968)
Mötorhead - Mötorhead (1977)
Motorhead - Overkill (1979)
My Bloody Valentine - Loveless (1991)
Nektar - A Tab In The Ocean (1972)
Neu! - Neu! (1972)
[color=#FF0000]Neurosis - Enemy Of The Sun (1993)[/color]
Nirvana - Nevermind (1991)
Notwist - 12 (1997)
The Outlaws - The Outlaws (1975)
Outskirts Of Infinity - Scenes From The Dreams Of Angels (1989)
Ozric Tentacles - Erpland (1990)
Van Dyke Parks - Song Cycle (1968)
Gram Parsons - GP (1972)
Gram Parsons and The Fallen Angels - live (1973)
Pink Floyd - Dark Side Of The Moon (1973)
Pixies - Surfer Rosa (1988)
Popol Vuh - Hosianna Mantra (1972)
Pretty Things - S. F. Sorrow (1968)
Queen - A Night At The Opera (1975)
Queen - News Of The World (1977)
Lou Reed - Berlin (1973)
The Residents - Meet The Residents (1973)
The Rolling Stones - Beggar's Banquet (1968)
Todd Rundgren - Something/Anything (1972)
Rush - Moving Pictures (1981)
Sagittarius - Present Tense (1967)
Pharoah Sanders - Karma (1969)
Santana - Caravanserai (1972)
Sebadoh - Bubble & Scrape (1993)
Archie Shepp - Mama Too Tight (1966)
Sir Lord Baltimore - Kingdom Come (1970)
Slayer - Reign In Blood (1986)
Snakefinger - Against The Grain (1983)
Soft Machine - Third (1970)
Sonic Youth - Daydream Nation (1988)
Sonny Sharrock - Black Woman (1969)
Spacemen 3 - Playing With Fire (1988)
Dusty Springfield - Dusty in Memphis (1969)
Status Quo - Live (1977)
Rod Stewart - Foot Loose And Fancy Free (1977)
Karlheinz Stockhausen - Tierkreis 'Zodiac' (1974/75)
Stooges - Fun House (1970)
Sun Ra - Angels And Demons At Play (1974)
Sun Ra - Space Is The Place (1974)
Supersilent - 1-3 (1997)
Supersilent - 6 (2003)
Sweet Smoke - Just A Poke (1970)
Talking Heads - Fear Of Music (1979)
Television - Marquee Moon (1977)
Thin Lizzy - Live And Dangerous (1978)
TNT - Knights Of The New Thunder (1984)
Ui - Lifelike (1998)
Union Carbide Productions - From Influence To Ignorance ( 1991)
Velvet Underground -"White Light/White Heat" (1968)
VVAA - Beg Scream & Shout (Rhino Records' Soul Collection '61/'69) (1997)
Tom Waits - Raindogs (1985)
Scott Walker - Scott 4 (1969)
Leslie West - Mountain (1969)
The Who - Live at Leeds (1970)
Robert Wyatt - Rock Bottom (1974)
XTC - English Settlement (1982)
Yes - Fragile (1971)
Neil Young - Harvest (1972)
Neil Young - Rust Never Sleeps (1979)
Zombies - Oddesey & Oracle (1968)
There are probably a lot more great known/unknown albums that belong on this list,
who's next?