The Walmart I was at had 25 360's and IRC 7 or 8 Xbones. Naturally the Xbones were gone immediately, and the line for the 360 was huge, over the 25 product number they had, and they were turning people away too. Some people sat in the line knowing they would be out of stock before they got to the front unless someone ahead of them decided not to wait anymore. Meanwhile the $149 12GB PS3 barely sold, as did the $200 LoU bundle. And the mini Wii, I did not see it sell a single unit.
There's no way at all that the Xbone sold anywhere close to the 360.