Couldn't live without games:
Nintendo: Zelda, Mario, Smash Bros, Mario Kart,
Xbox: Banjo Kazooie
PlayStation: Nothing

Pretty good lists see how well forums can go when we're not at each others throats! Anyway if you're a fan of one side maybe you should at least check out the some of these games people listed throughout, it can break down the fonboy barriers haha. Too keep things going what are yalls favorite nitch titles that is exclusive to console/brand, get to show what people should try out on other consoles.

SNES: Earthbound
Wii: Zack and Wiki
PS2: I really liked the Yu Yu Hakusho game that everyone seemed to hate
PS1: Ape Escape (not sure how nitch it was but I never heard much about it)
Atari 2600: I had this game hopefully someone else remembers this cause I can't for the life of me remember the name, I think it was called invaders, but it had space ships and such and you had to go around killing them on this one stage, I know its vague but I know it was a late in the Atari days and not known so and it was really good.