360: Geometry Wars*
DS: Pokemon Diamond/Pearl and Advance Wars DS, and Elite Beat Agents.
PS3: Super Stardust HD*
PSP: Tales of Eternia and Tales of the World
Wii: Super Metroid
*Going by videos, anyway, these games are incredible.
In the future:
PS3 will add LBP to its lineup along SSHD. PSP will add Star Ocean: First Departure and Star Ocean: Second Evolution, but subtract Tales of the World for a solid top three. Wii will get Super Smash Bros. Brawl.
I have no idea what to do with DS, because Advance Wars DS 2 is coming and EBA2 is probably coming, yet I can't bring myself to take off anything else on the list. So I guess DS illegally gets a top five.
Wait, if DS can get a top five, I guess PSP can too. So leave Tales of the World in there, and also add Tales of Rebirth.
Edit: Oh man, I forgot about Dragon Quest IV. Add that to DS for a top six.