ps4 is not coming out or any new xbox, but wii will come out with a wii hd. they even stated that ps3 and the 360 are very advance for their generation.
Ok here is what you need to ask yourself. What games do I want to play? (console exclusive or cross platform) Which controller to I prefer? Do I want to pay for REALLY good online or get pretty good online for free? Do I want a blueray player? I could just tell you which I think is the better system, but people need to really decide what they want based on these questions. Because honestly both systems are fantastic and have their strengths and weaknesses.