1- Piracy Sells . Piracy simply sells consoles . PS4 will have a really good security and the XBOX (3) will need to be always connected to internet , more security than the new SIM City !
2- Special exclusives . Mario and Zelda are simply not replaceable . But , on the other way , Infamous is as good as Prototype , Uncharted and Gears of War - Army of Two .
3- Backwards compability . WiiU runs Wii games, and some NES , SNES , GB and N64 games . PS4 ? Only PS1 and PS2 . Xbox (3) - Hardly will emulate XBOX .
4-Unique. A good PC will be able to do a better job than the PS4 or XBOX (3) . Now , there's nothing i know of that plays like WiiU .
5-Other type of backwards compablity.Wii accesories work on WiiU , All of them , and even a gamecube controller adaptor has been unofficially released . PS4 will use PSMove . Just that . Xbox(3) won't use kinect , probably won't use Xbox 360's controller.
6- Cheapest console . It will be the cheapest one, for sure .
7- Various ways of playing . PS4 - (Rarely Move and eye camera) , and regular controller. WiiU - Pro controller , Gamepad(Screen , giroscope and buttons) and Motion controller .
8- Better games - Games will have better WiiU versions . Like Batman Arkham City .

