Regarding Wii U, it really is a superb machine. The gamepad and its integration in the machine interface is friendly. If you really want to see the gameplay possibilities that this machine, it will turn to Nintendo Land Wii Party or U. These two games are exceptional inventiveness and shared pleasure. For multiplayer games, given their diversity, there will be something for everyone.
About New Super Mario Bros. U is a real bomb! Alone or with others, the game is rich, full of nice surprises, easy to handle and yet full of subtlety that take your breath any player, experienced as a newcomer. And that is a feat gameplay!