Based on this and other articles, it seems clear to me that the PS4 will have better graphics than Xbox One going into the next generation. And thats fine.
But it also seems clear that Xbox One will have better everything else than PS4. Specifically, better audio, better multiplayer, better gameplay, and an all-around better gaming experience.
It will have better audio thanks to a dedicated APU (audio processing unit), better multiplayer and gameplay thanks to cloud-based AI, and an all-around better gaming experience thanks to the software architecture and Kinect.
Sony can have the better graphics bragging rights. Im fine with having a better experience all-around, even if it means slightly inferior graphics.