The way he says 'very surprised' it makes me think that it's teh XONE that could look better. I mean, why would we be 'very surprised' if it was PS4... we are totally expecting it to be PS4 and therefore would NOT be 'very surprised'
I wish these ppl would just come out and say.
I know , I know ... NDA etc
From hardware specs perspective, chances of X1 version looking better than PS4 is : X*Y+176/32+ GDDR5+SHAPE = 0%