Buy Too Human.
If you never played Eternal Darkness, it was awesome, with fun (though admittedly easy) gameplay and an awesome, awesome storyline which actually had my friends and I talking about it afterwards.
I know some people consider Dyack a bit of a flake, but this game is his baby and you're lucky to have it on your console. I don't know why you bought your 360, but if ED and MGS:TS were any indication, you'd be robbing yourself of an excellent experience if you don't pick this up upon release.
SK is a good company and they deserve your patronage. If you were on the fence, I hope this will sway you into at least a rental. I'm certain this one won't disappoint.
"I mean, c'mon, Viva Pinata, a game with massive marketing, didn't sell worth a damn to the "sophisticated" 360 audience, despite near-universal praise--is that a sign that 360 owners are a bunch of casual ignoramuses that can't get their heads around a 'gardening' sim? Of course not. So let's please stop trying to micro-analyze one game out of hundreds and using it as the poster child for why good, non-1st party, games can't sell on Wii. (Everyone frequenting this site knows this is nonsense, and yet some of you just can't let it go because it's the only scab you have left to pick at after all your other "Wii will phail1!!1" straw men arguments have been put to the torch.)" - exindguy on Boom Blocks