Well after working with both systems for a year I am town. On one hand this generation I was all about Xbox Live. 50k nerd points and over 120 games.
But I really hate the changes that they made to the new One controller. The face buttons feel squishy, the triggers were moved, the angle the controller now sits in your hand just feels wrong. The controller itself feels really cheap.
I also hate the One's UI. To be fair its not final but I don't like it at all.
Now the PS3 which I have only used as a blu ray player and I own like 4 games.
The Ps4's controller is a lot heavier, the analog sticks have been updated, the sloppy dead zone is gone, the response is nice and tight, the UI is the same Sony UI that is shared with the Vita and Ps3.
I know in time I will have both, but the question is which will be the primary?
My brain is leaning towards the PS4 but my heart is leaning towards the One. Its all going to come down to what most of my friends pick up, and the online service.
Xbox will destroy Sony on online service