ok, now i think that this is how i think it will go, the console that will sell the most copies will be the nintendo Wii, most powerful console is the PS3, i also think that PS3 will hav the best games, mainly just because it has a past of not being the best console out, but yet still having the best games and selling the most copies, xbox360 will come in 2nd for both those competitions, so they all basically equal each other out.
In my opinion i would buy the PS3 because i'm not afraid to pay the bit extra for the whole better console n blueray disk reader.
by if ur a young kid and earn ur pocket money by selling lemonade on a wooden box, then i think u should go for the Wii.
If your really into best quality games, then buy the PS3
And if you were too anxious to wait for the PS3 or Wii to come out then i'm guessing that you already hav the 360, and ur now disappointed now that you hav friends that hav consoles that r heeps better than urs