MKWii is getting heavily outlegged by Wii Fit now.
They have dawn of the New world lower for 3 weeks than we have for 1 though.
In July, Wii Fit should pass MHF2:G, to be the 2nd best selling non-DS game this gen! MKWii could also pass Brawl there.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS