I own both systems and have for a year now. I like the Xbox one better mainly cause I like the controller and Xbox live service better then Sonys psn. I also really like the halo franchise and all the other games I play have come out for both systems. So my ps4 tends to just collect dust.
I also like the new direction the Xbox has taken with windows 10, and its smart glass service. If you are a big rpg fan ps4 does have a larger selection some are only JP release tho but still good games. That's just my 2 cents I own both but really besides a few titles never use the ps4.