PS4, it has better graphics across the board, it doesn't have a percentage of its power reserved for an already defunct camera. its hard drive can be changed with ease rather than you having to spend wedge on a USB 3.0 external hard drive. It is more reliable, I sell both consoles and the return rate is 4/1 against Xbox, if its not the console its the pad or the headset. You don;t need to pay £20 for stupid headset adapter that breaks on a PS4. PS4 had a problem initially with pads and the rubber splitting but I've not had one of those return in a good few months. Xbox one and the playing of old games. Lol, it'll fry, all M'Soft have done is built an emulator on top of the OS which will just heat the machine up more than it needs to be. As a seller I am unhappy about it as machines will break and M'soft will not take responsibility for it claiming the machine has been abused.