I own both and use both for different reasons. Gears of War and the Halo games of course I am going with Xbox one, Uncharted and anything really Naughty Dog, I have to with the PS4.
Multitude of reasons to have both consoles and love them equally!
What do you play multiplat on?
Well, as for the Call of Duties and Maddens, I have friends on both so usually I get games on them both.. Frustrating, but really I have no preferences.