This is a pretty humorous article since these were all the names that were in development and being discussed as the official name for the Xbox One. It seems like they wanted to include entertainment or experience from the list. After seeing all these, Xbox One was the better choice... 
Via: Edge Online

Microsoft’s ‘naming guys’ wanted to call the company’s first games console 11-X or Eleven-X, but were overruled by Seamus Blackley and his launch team.
Via: Edge Online