I know I am late to this thread, but I just had an idea.
First I will start with Xbox 360, It has the lead by coming out first, but worldwide, it just doesn't have the market. I say that it will survive the 7th gen, but I put it in third.
next the Wii, I think it will out sell the crap out of the other two... at first. It's price, its controller and the ease to program for will win it 2007 and maybe 2008, but by 2009 its weaker CPU will be very glaring. Ether Nintendo will have to release its 8th gen early or it will end up like the Game Cube is now, a dead system before the new system is released. I put it in second.
last, the PS3, this is a hard one, it is way to pricey, blu-ray is pointless for the 95% of us with out HD, and the games just ain't there. But I say in wins the gen simply because of the long run. The system IS next gen, but the games right now are not. The same thing happened with the PS2 games, at first the game looked a lot like PS1 games, but they got better and better.
So my prediction is that PS3 wins a much closer battle, but doesn't pull in to the lead until 2010.
just my 2 cents
