Call of Duty: Modern Warfare 2 has been entrenched at the top spot of the UK sales chart for six weeks now. FIFA 10's expected pre-holiday sales surge happened and the game rebounded from fifth to second place, but it still wasn't enough to suppress the firepower of Activision's FPS (it seems the only thing more powerful than Call of Duty is Waldo). While stuffing themselves with Turkish delight, Chart-Track has declared this the "Official Christmas Chart" of 2009. Nintendo has Wii Sports Resort and Wii Fit Plus at the third and fourth spots, respectively. Despite serious competition during the holiday week from more family-friendly fare, Assassin's Creed 2 maintains a respectable foothold, slipping only two spots down to fifth place. Thanks to the movie release, James Cameron's Avatar got its blue butt on some big bird-lizard things and flew up 17 spots (129%) to reach 12th place. Source -- Modern Warfare 2 captures Christmas No1 [Chart Track] Source -- All formats chart [Chart Track]