For me it's the PS4. The reasons to get the former heavily outweigh reasons to get the latter. I'm willing to pay an online fee (much like 360's LIVE), because I'm paying for quality. I'd also be willing to trade the "Sign into LIVE every 24 hours" for an £8.99 a month subscription fee for XBOX Live. Getting online on any console for me is a pain, but at least the PS4 doesn't make it compulsory to play games even if they're solely offline.
Plus it's cheaper. I don't care for Sky or music players or even the Kinect, so I'm not going to pay an extra £100 for 'more'. It could give me pudding and tummy tickles and I still wouldn't buy the damned thing. Not to mention backwards compatibility on the One is non-existant, meaning the original crowd is further alienated and pushed towards the PS4.
Because I'm a gentleman I wish Microsoft all the best, but I'm sorry to say that they're going way too far with what they think they can get away with. It's a matter of protection and safety versus freedom, and the One isn't giving enough freedom and choice.
TL;DR - I'm not sure about getting a PS4, all I know is that it's a fact I shan't get the Xbox One. And when that console ages and its servers come down, then what? You can't play the games at all then. Or do Microsoft seriously think it'll last forever?