mine are:(not in order of most liked)

1. legend of grimrock
2.book of unwritten tales
3. Avernum/nethergate/geneforge
4.resonance
5.mutant blob from outerspace
6.machinarium
8.darklight dungeon eternity
9.cthulu saves the world
10. breath of death 7 the beggining

thats almost all the indie games i've ever played and liked. i mostly play the mainstream stuff.
and i'm not even sure if all of them are indie techincally. i don't follow the techincalities like some people do. :)

So's Valve then apparently. I'm not saying you're wrong, I really don't know anymore what constitutes an Indie game/Dev, but from the sound of it, there's not really one accepted definition of it. I do think the strict sense of the word is a bit odd then, since I have trouble seeing Valve as Indie.

Braid
Cave Story
Gemini Rue
La-Mulana
Legend Of Grimrock
Limbo
Machinarium
To The Moon
VVVVVV
World Of Goo

I see your point... but yeah i wouldn't consider Valve an indie dev, dunno why, since as you said, they should be defined as such if you go by the strictest definition :s...

I do however recall Telltale being in several Indie Bundles.. so they must be viewed by many as indie devs?