The xbox version will not be superior, lol
They are all the same game (story line is same, graphics are not obviously), Shanghai wasnt in charge of the entire project. Montreal had it laid out for them, where as for Pandora, Montreal gave Shanghai the green light to do Pandora on their own while they worked on Chaos. Does that make sense?
The 360 version will kick ass no matter which way ya look at it

Looks like the Xbox 1 one will be better. Storyline is better, and it has co-op. The Spies vs. Spies isn't supposed to be as good as the 360's multiplayer, but I'd much rather have co-op.