Interesting list, I have to admit to not hearing of a couple of them... just not as up on the current games I guess. I picked up Eternal Darkness when I first got my Gamecube back in 2002, I think it was. I remember thinking it was great and playing through it thrice right away since I only had that and that year's NCAA football, though it's sat on the shelf ever since.
But, like others, they went on my to-buy list and wouldn't you know I stopped by EB tonight and picked up a few at the buy 2, get 1 sale. I'd been wanting to get Ikaruga for a while, so I picked up that, Ico and Indigo Prophecy. Now I know what I'll be doing over winter break.