I haven't liked COD since Modern Warfare 2, but this game is a juggernaut in sales and has been a juggernaut for the Xbox brand, especially in the US.
There is no doubt that COD Advance Warfare PS4 will outsell the Xbox1 version globally. However after Microsoft has invested lots of money into 3rd party exclusivity deals for the COD franchise, if the PS4 version of COD AW outsells the Xbox1 version in the US, that's very bad news for the future of Xbox1 for this generation.
Madden PS4 outsold Madden Xbox1 in the US despite heavy Xbox1 advertising.
So if COD AW PS4 outsells COD AW Xbox1 in the US (and without a doubt, globally), does this mean that COD AW PS4 outsold COD AW Xbox1 globally in the US?!?