I haven't personally acquired these but I'd have to say PS4, I've played it a few times and the controller seems so smooth and everything is where you want it whilst the graphics are breathtaking. I haven't played Xbox One yet!
The ps4 is slightly better when it comes to performance. The graphics are a tiny bit better. But the servers blow dick. And the games are not too good either. Xbox one has better games and accessories. Such as the Kinect. The graphics are still amazing also. The controller is better then the Dual shock 4. The xbox one has dedicated servers. Has far better entertainment. And is perfect for the whole family. So I would say Xbox one is better.
I believe the PS4 is better from a technical aspect..
However, I would personally get the Xbox One due to the fact that most of my friends play it and of course I'll prefer the exclusive titles whenever they're released. That was my whole reasoning behind buying the Xbox 360, however Halo 3 was a more major and highly waited released.
This topic is all opinion. However, I have 360 and Xbox One so of course ill say Xbox One though the lack of games on Xbox One got me feeling some type of way