I think the one that will outsell the other will do that with just a small margin. Because we all know that the demand is high for both of them, especially since they are just launched and also since it's Christmas time. We also know that both consoles will be of shortage and that many will not be able to buy either one of them.
However, I do think that the PS4 would have outsold the X1 if they both had high availability in stocks, mainly because it is cheaper and would appeal to most because of that, also because of the good response and media attention of the PS4 and terrible for the X1.
But this fall, they will be very equal in sales. But the European market will be more interesting to see, I have no doubt in my mind that the PS4 will outsell the X1 there, because of reasons known to every. But, once again low stocks might make the numbers equal here too.








