Xbox One's media-sharing offers more option but still fundamentally falls short in comparison to Sony's offering. Yes, there's the same lack of direct access to your clips that proves so frustrating with PS4, but that's way down the list of issues we have with the current system. Accessing the GameDVR while playing is too slow and ponderous in comparison to the PS4's more refined interface, while five minutes of spooled gameplay isn't really enough. Even saving off clips is a grind, with gameplay held up while you wait.
It's difficult to ignore the sense of friction in the whole process when it's virtually instant on the Sony platform. This could perhaps be forgiven to a certain extent if we saw any kind of quality advantage in the final video on Xbox One, but the mediocre state of our SkyDrive exports was disappointing. At best, we're looking at YouTube quality here when PlayStation 4 simply looks better without appreciably larger file sizes. Lack of screenshot functionality on Xbox One is also a missed opportunity, while the no-show at launch of Twitch live-streaming from a system that bases so much of its appeal on its media credentials is genuinely baffling. That said, the additional editing options of Upload Studio are interesting - just a little half-baked.
http://www.eurogamer.net/articles/digitalfoundry-next-gen-game-broadcasting-tech-analysis