So PS4 version looks better and mostly perform better than X1 regardless of what people said, what a big surprise.Digital Foundry analysis:
http://www.eurogamer.net/articles/digitalfoundry-2014-the-evil-within-performance-analysis
'As it stands the results aren't looking great for either console but the PS4 version takes the lead for the moment with its higher resolution and smoother update when running at 30fps. It is odd that certain scenes do operate with a slight advantage on Xbox One, however, and we'll have to play further to see how the game trends in later sections. Anyone sensitive to frame-rate issues is going to have an issue playing this game and should probably go for the PC version provided one has the specs to handle it'
Too bad both versions runs like shit in general though, that's a big fuck up by Mikami's team.