I was hoping someone'd pick Ambient. I'd say Pale. It's the longest and I love how it builds up. Someone on YouTube said "it's basically the same thing overlapping over and over again", but layers are added to the song which makes it very interesting. The first time I was listening to it, when the guitars kicked in, I was like fuck yeah.
Session. For a long time I thought of i as Cure for the Itches inferior brother, but it really is a better song.
I'd pick either Fallout, Jornada Del Muerto, Empty Spaces, The Requiem or The Radiance but all of them have vocals in some form... So... JDM anyway
Lockjaw and Drawing. If we are counting JDM and The Requiem as instrumentals then I'd add those to my list too.
Session, for sure. I just love that one. Drawing's pretty good, too. I'd count Announcement Service Public as one of my favorites, but I'm not sure, since it does have vocals, even if they're backward ones.