VGN News: NPD numbers are in. Xbox One outsold PS4 in the US for the month of Dec and is leading in game sales. Microsoft congratulates Sony and says haters should go away.
NPD Sales numbers: Neogaf
Microsoft: both PS4 and Xbox One will “sell a ton”, online hate “needs to go away”: OXM
Xbox One #1 Console In US For December, Outselling PS4: Forbes