Should I get the Wii or Xbox 360 w/ Kinect?

I might be getting one tomorrow but I have a quick question, I know it's compatible with all xbox 360's, now I heard that you have to have a wire with it though if you don't have the new 360 or does the new 360 suppose to have a wire to ...

var:http://www.epicfailgamer.com/questions/xbox360/kinect/should-i-get-the-wii-or-xbox-360-w-kinect/