http://www.ubergizmo.com/2013/06/amazon-pegs-xbox-one-release-date-on-november-27/
This is interesting, considering (At least from what I've heard) that the earlier you release a console the more successful it will be, but there is risks with being rushed (Like the WII U, I personally feel it was rushed). Id say PS4 is going to release first(looking back to the previous consoles, there's some what of a pattern.) , consider that the (Not sure if this is true) xbox one demos were being run on high end PC's
What do you all think?