Please, tell me that doesnt include multiplatform games, because it makes no sense if that's the case
PS4 versions have much more reviews since most review multiplatform on PS4, and X1 versions have very few reviews on metacritic, that makes really no sense to include multiplatform games between both since the real metascore will be the one from the PS4 version with the most reviews, you can only include multiplatform like X1/360/PC or PS4/Vita/PS3/PC
Predictions for end of 2014 HW sales:
PS4: 17m XB1: 10m WiiU: 10m Vita: 10m