I agree. I just got Amnesiac yesterday and I've listened to it about three times already. There are some great songs on there. "Packt," "Pulk/Pull," "Pyramid Song," "Dollars and Cents," and "I Might Be Wrong" especially, but its definitely a very unfocused album, more like a collection of B-sides than an accompaniment to Kid A.
By the way, speaking of Radiohead setlists and playlists, I made a really good one today. Its about an hour long.
2+2=5
Subterranean Homesick Alien
Nude
I Might Be Wrong
Idioteque
The Bends
Little By Little
Jigsaw Falling Into Place
How to Disappear Completely
Fake Plastic Trees
All I Need
Paranoid Android
Codex
Street Spirit (Fade Out)