This question already has an answer here:
I have certain consoles, and I'm always looking for recommmendations on certaing genres I like. Is gaming stackexchange the place to ask for these recommendations? Who better than the users here to give good opinions about games?
Say: What 2 player game can you recommend on GameCube? What fighting game do you recommend on Nintendo DS?
I know I could spend hours browsing the "big sites" to find their rankings and stuff, but they're never as real as community opinions...