Xbox one doesn't have the processor/graphics that the Ps4 has, it's geared a lot to media entertainment, which according to reports a lot of it won't work in Europe straight away, add to that the Xbox one is nearly £100 more than the Ps4 it's a know brainier IMO
They're about the same if you add in the cost of the PS Move aren't they? Which is a fairer comparison as Xbox has next-gen Kinect built in? (Disclaimer: I don't actually know much about this at all, just looked at some previews and that was about the only difference I could see. Happy to be corrected by someone who actually knows what the f**k they're talking about)