I don't like old predictions... so some more recents.
New Xbox to 'win' against PlayStation 4, says analyst Michael Pachter
http://www.digitalspy.co.uk/gaming/news/a464716/new-xbox-to-win-against-playstation-4-says-analyst-michael-pachter.html#~oSGIvfNbZYJ3mY
A month after...
PS4 to "win" console wars in 2016 by 30% - Analyst
http://www.gamesindustry.biz/articles/2014-01-02-ps4-to-win-console-wars-analyst
PS. The gap is already over 100%.