Guys Amazon doesn't "predict" the winner, it shows what sold the most for that month in Amazon, which has been the same as NPD for the past year, so while it isn't the whole market, it does show a glimpse of what is more in demand for that month, so it is a reliable thing to go by, just because Xbox One will win this month in Amazon doesn't make it any less credible. All Sony fans were gloating how PS4 kept on winning there, so why change now?