Titanfall will move units, but neither the standard Xbox One or the Titanfall bundle have been top of Amazon bestsellers, where PS4 has been for over a day. If that is the same as in stores Xbox One won't even win March NPD.
In the longterm, Xbox One still has a chance of winning UK and US, but it will have to do everything right. But neither Quantum Break or Sunset Overdrive are system sellers.
So I would say PS4 by a comfortable margin.