I think its is that you prefer the line up of games on the X1 and the feel of the controller over the games/controller of the PS4. While Garden Warfare and Titanfall are on PC, they are games that look to be a blast to play with buddies online from the comfort of your chair . Enjoy your system man .
You're right, the controller makes a huge difference and after maining the 360 last gen the X1 controller feels like home. And I do like co-op games more in general. It really is a shame Destiny was delayed.