The XBox 360 has excellent Multiplayer support (free online gaming!) and has had plenty of time to establish itself in the market, the Wii (the hell kind of name is that?) benefits from supperior innovation ie the controller, though I suspect that later on a more traditional controller will be released, and Nintendo also has to shake out of the niche that it has worn for itself that it mostly bears kiddy titles. The PS3's pricetag will be a tremendous blow to it's early sales, but it won't stop people buying it. The real PS3 community will develop when the price drops. It also benefits from being the most powerful monster of a machine to enter the market for this generation, stats-wise.
But for me, the biggest problem with these consoles is the need to splash out on an HD TV to benefit from the next-gen graphics.
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