I'll have a stab at this.. This is going to be fucking hard at points, as i'm going to try and pick just 1 from each band, a song that i have the best memories connected to, or just clicks with me the most.. I'll also try and note a few artists that haven't been mentioned.
Weakling - Dead As Dreams. (Coy will know why it's one of my favourite songs ever).
Esoteric - The Order Of Destiny. (Ffffffffffffffffffffffuck that was hard
)
Ulver - Sadface. (Even harder!).
Akira Yamaoka - Sickness Unto Foolish Death (probably the hardest choice for me overall).
Godspeed You! Black Emperor - Rockets Fall On Rocket Falls (extremely tough again).
Enslaved - The Crossing.
Neurosis - Stones From The Sky (another toughy).
Tenhi - Vilja.
Venetian Snares - Hajnal.
Tool - Rosetta Stoned.
Skinny Puppy - deep down Trauma Hounds.
Cult Of Luna - Echoes.
Opeth - Moonlapse Vertigo.
Akercocke - Shelter From The Sand.
Aphex Twin - Nannou.
Blut Aus Nord - Level-2 (Nothing Is Not).
Callisto - The Fugitive.
Deathspell Omega - II.
Camel - Migration.
Hawkwind - Hassan-I-Sabah (The live version on one of their most recent DVDs.. That version is fucking insane!)
The Meads Of Asphodel - Paradise.
Isis - Weight.
Radiohead - Morning Bell.
Smohalla - Les Yeux Du Temps.
Leftfield - Afrika Shox.
Mare - Sun For Miles.
Negură Bunget - Ţesarul De Lumini.
Primordial - The Golden Spiral.
Niroth - Seventeen.
Scott Walker - Hand Me Ups
WITTR - Cleansing.
Sleep - Dopesmoker.