Gotta agree. Seminal.
Which three? For complicated reasons, "Vengeance (The Pact)" was written for the film, but not used, because it kind of ruined the vignette by telling the story in the lyrics and would've been impossible to write an animation to.
So I presume #1 is "Veteran of the Psychic Wars".
The other two?
Me: a bunch of underground shoegaze:
Momentary, Distressor
Darker Days, Pale Shade
In the Interim, No Sun
For Ever Six Times (Vinyl Version), Another Heaven
Solace, Hex