Its like this theory of mine....the three systems; gamecube, ps2, and X box are like movie ratings....
G-PG = Gamecube, has a bit of a more childish rut to it and in our generation is the least popular...however this doesnt mean its a bad system (i say PG cause there are some really good pg movies out there) actually its my favorite but any hoot
PG-13 = Ps2, which i would have to say is the most popular just because it appeals a bit to both sides making it the medium of the three (obviously)
R = X-box, most popular for our Generation cause it has all the shooting and hardcore action and such
(hope that all makes sense

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I was never a big X-Box fan....at all....its the only system i dont respect...but its a system so i can really hate it...but i guess its just cause the games dont appeal to me so i guess im going with PS3 (its looks pretty cool too)