Which game console is best for me?

i am 14 and i have a wii and DS. i am getting really annoyed with the selection of nintendo's games. they are all almost exactly the same! so i have enough money to get a system. i was looking at the PSP, but then i read that that system just isnt that good. then i looked over to the Xbox 360, and those look pretty fun, cept for a few things like the ring of death and noisy fans and stuff. and THEN i checked out the PS3, which looks really cool. o ya, i like shooting games (sort of), but i also really like RPG games, racing games and puzzle games. so which one is better for me?