On the Arcade side, the top seller was Pinball FX 2, followed by Full House Poker, Castle Crashers (which came out in 2008), Fruit Ninja Kinect, and From Dust. Beyond Good & Evil HD hit #20 on the list, which seems good, but too close for comfort, for those of us hoping it would be a strong indicator of interest in the sequel.
You can find full top twenty lists for retail, arcade, and XBLIG, along with Games for Windows Live and Windows Phone (Surprise! Angry Birds!) at Major Nelson's blog.