Azelover on 14 October 2014
They use the GamePad's screen a lot. Until there's a respectable game that uses the controller's screen in a very limited way and focuses entirely on a single screen, we won't really know.
The secret behind Super Mario Galaxy was you couldn't really control the screen, same for God of War on PlayStation. Until we see that kind of design again we'll wonder. Just from what they have achieved already with two screens and free roaming camera I'd imagine the Wii U has the potential to go well beyond PS3 levels. But that may take Super Mario Galaxy 3 for us to know.
