So basically the wii u is indeed more powerful than current gen but due to hardware differences multiplatform games struggle on it. Indeed the other next gen will use gpgpu but will be more powerful so wii u version will look worse. So everybody who wants to play nintendo games will buy one and have one of the 2 others for multiplatform titles...Just like every previous gen since the 32/64bit era....
The 2 space combat games on gamecube...All the movies best scenes....