Yes, the PS4 version undoubtedly has superior resolution and HBAO, it has more pixels, but to me the IQ shows the Xbox One version has less pixels but superior quality pixels. -if that's a fad, or it is going to be the trend this generation I wouldn't complain-
I mean the Anisotropic Filtering seems to be better implemented on the Xbox One and the lighting has an extra touch, the blur is not present. (besides that, as some people pointed out, the hardware scaler on the Xbox One seems to be doing a good job)
http://imageshack.us/a/img30/3198/g73u.png
http://imageshack.us/a/img713/4721/ux7k.png
http://cdn.makeagif.com/media/10-29-2013/Cga4zT.gif
http://i.imgur.com/7oXBxrq.png
http://imageshack.us/a/img62/5310/8n11.png
In fact, if we hadn't known about the resolution and the framerate, AA, HBAO, most people would think the Xbox One version looks great if not better.
Won't take anything from DF at this point until they update their source.