Unless u like MS exclusives better, PS4 is the way to go. PS has more console exclusives than X1 (dont pay attention to those who say otherwise because some of them are also on PC, which by that logic they would not have Titanfall or Project Spark) and Infamous to me is the better of the two march releases.
With Driveclub, The Order, MLB The Show, and Infamous slated for 2014, the PS4 will also have more quality exclusives in the near future with some of PS's other big guns working on projects later down the line. Furthermore PS4 has more Indie support and the PS camera can already do everything that kinect does and getting one would still cost less than the X1.
There are valid reasons for both, but to most gamers PS4 is the way to go because even if all u care about is 3rd party, PS4 will have the better version of that game.
Just my 2 cents.