My main gaming system is whatever system I am playing a game on at that time. For instance, just this weekend, I went back and replayed Zelda 2: Adventure of Link and The Legend of Zelda: A Link to the Past (an NES and SNES game respectively). But often times, I can be found playing games on the DS, Wii or PC off and on. Or again, even older systems. Its just dependent on the game.