Ummm that is hard. Uncharted is one of them for PS3 exclusive, Smash bros is another exclusive. IF ds counts, there is this one called Super robot taisen wars OG saga endless frontier since i can't say chrono trigger or Final fantasy iv ds since they do have Ports from other past consoles. I like Metal gear solid peace walker from psp. I didn't have xbox 360 so i can't say for it. But one for each system should be okay right?
Halo 3 and 4, too, while not the "best" they're definitely those games that should've been given the PC treatment. Same with the anniversary edition of Combat Evolved, and the MC collection would've been nice to see too even if it's not seventh gen >.>
Maybe MGS 4, The Last of Us, Gears of War 2+, stuff like that I guess would be pretty cool. It's hard to make a list really, you might as well just say "all of them" and be done with it ;O;
Yes it was a gold mine, cause that was when video games where the games we wanted, from sonic rush, to megaman zx or star force, to contra 4 to final fantasy, dragon quest, chrono trigger, to super mario, who know what the heck games were gonna be there. Even bleach was on there, and it was a fighting game by sega, it was great too, 4 player fighting game? Reminded me of guilty gear isuka. But they were what we all wanted and then some.