Which game will be 2015's best-selling exclusive?

[lord_of_flood]

I think Uncharted 4 is a given, and Halo 5 will likely be in a close second. I think a Wii U exclusive will take third, but which exclusive is the question. The popular opinion seems to be Zelda, but I think people may be seriously underestimating Mario Maker. If done right that game could be one of the most marketable games on the system, especially if they release a Mario Maker hardware bundle (I'm also predicting a price drop on hardware when that game comes out).