thx1139 on 09 December 2011
According to this if the top 10 was by individual SKU Halo Anniversary and Mario 3D would be in top 10.
http://www.gameinformer.com/b/news/archive/2011/12/09/modern-warfare-3-skyrim-top-u-s-holiday-sales.aspx
Its libraries that sell systems not a single game.