PS4 + Wii U. I got a X1 but I sold it in December.
Why? I like a variety of games: RPGs, action adventure, fighter, sandbox, racing, platform, and some sports. I could never be Nintendo only, or Sony only or MS only. Good 3rd party is super important to me.
PS4 is covering most of my needs. I got Wii U primarily for SM3DW and a few other Nintendo faves. X1 largely overlaps with PS4 so that's why I decided I don't need one right now.
I play Titanfall on PC so it's not a reason to buy X1 for me. I would have regretted getting an X1 just for titanfall, as although I think Titanfall is a good game with good mechanics, it is also very frustrating. It has poor (seemingly NO) matchmaking so battles are often one sided. Often you either dominate or get dominated, and a strong team stays together while the weak team quits. If it was more balanced competitively I'd be more interested to replay.