I'm a Nintendo fan.
I own both Wii U and Xbox One. But the Xbox One sucks. Because Xbox biggest strength became its biggest weakness: Xbox live. So many problems connecting to friends, it's ugly. Never worth 60$ a year. Nintendo's online is free and I never had a problem connecting to a friend.
Playstation was good with PS1 and PS2. After that, all crap.
Nintendo is still innovative, I use the Wii U Gamepad as a tablet to visit websites before I go to sleep. It's pretty cool. But they should consider most of their fans aren't 10 year old boys anymore.