Will Xbox One hit 6 million in the North America before Wii U hits 3 million or the other way around?
Xbox One stands at 2,681,819
While Wii U stands at 2,377,734
Xbox One typically outsells the Wii U by 40,000 each week in north america which means Xbox One sells about 4 times as much as Wii U.
Wii U needs to sell about 670,000 and Xbox One needs to sell about 3.3 million. Xbox One sales will have to take off a little for this to happen which is highly likely at this point with price cuts and multiplats!
Wii U has:
Mario Kart bundle
Edit: since people told me that I was being biased I have to add beyonetta 2 and possibly hyrule warrior (not that they are going to sell more than a few thousand systems anyways) this year (these could be 2015) smash bros is not coming anytime soon.
Xbox One has:
Titanfall effect still
Kinect Sports rivals
watchdogs
Madden
Minecraft xbox one edition (will come soon)
rumored gta5 port (highly likely)
NCAA football
Microsoft advertising (the best)
more opprotunity for bundles
Halo
Quantom break (maybe)
destiny, call of duty, assassins creed (if xbox One hasn't reached gaol by then)
will release in more north american territories this fall (central america)