Ps4, it runs smoother, looks better I mean come on really all the Xbox one has is halo. Call of duty used to be theirs but now it's come down to where it's switching platforms. Not only that but people talking about the colors being more brighter and gives out a more wow than a ps4 but last I checked if you go outside the colors don't go wow? They are more like a dull. So if you want realism than a ps4 is the way to go. Of course you can upgrade the memory but would you rather install it manually than it be a usb like Xbox? Anyone could take that so quick. When you change a hard drive on a ps4 it still looks the same. When you add a hard drive to an Xbox there's a usb hanging from the console. Boring!! Trust me, the best sellers are on ps4 with great stories, amazing gameplay, multiplayer and all.