i cant see smash bros selling wii u,i personally hate it as a fighting game,it is a fighter for kids period imo,mario kart is prob one of the only games that MIGHT make a difference...and if it dosnt then nintendo is in trouble,ive come to the realisation (or however you spell it) that the wii u will be in 3rd place behind the xbone and ps4 all this gen,,,and thats just the way it is
let me explain to you why your post is cmpletely and utterly 100% not good.
Let's start with the fact there a very high chance you don't know balls about smash. When ypu really learn it, smash is one of THE most competitive fighting games there is.
The number of AT's there, and the ridicullous level of mind gaming you see at high level I personally have never seen in another fighting game.
I assume you don't know because think anyone who gotten a true glimpse at the true smash could disrespect it by calling it "a fighter for kids period".
Second, Mario Kart will make a difference yes, but considering 3D World alone seems to have just increased sales I'm fairly confident there will be others that do the same. Just because you have something against a game it does NOT mean it won't sell. smash is a legendary gme, and i know lots that want it.
Finally nobody knows where any of the systems will land this gen. For all we know the Ouya could win. There are way too many variables to choose one. Just look at the 3DS