Hey, long-time lurker, but I had to post in this. Where are you getting the 206 games figure for the WiiU? I checked Metacritic's 'All-time Game Releases by Scores' and they list it at 139. The equivalent places list PS4 at 260 games, and XboxOne at 171.
Using that data you'd come up with:
Metacritic Score.........PS4................WiiU..................Xbox1
>90 .........................(6) 2.3% ..........(4 )2.9% ............(2) 1.2%
>80 ......................(66) 25.4% ........(40) 28.8% ........(35) 20.5%
>70 .....................(165) 63.5% .......(89) 64.0% ........(108) 63.2%
>60 .....................(221) 85.0% ......(115) 82.7% .......(144) 84.2%
The game numbers in parentheses are cumulative, and all percentages are based on the totals given above. I used the Critic scores not User scores, and unscored games (less than seven reviews) were not included. I am a bit confused as to where you got some of your numbers. I only read the OP, so if this has already been addressed in the thread, I apologize.
My sources:
http://www.metacritic.com/browse/games/score/metascore/all/ps4/filtered?sort=desc
http://www.metacritic.com/browse/games/score/metascore/all/wii-u/filtered?sort=desc
http://www.metacritic.com/browse/games/score/metascore/all/xboxone/filtered?sort=desc
EDIT: Sorry for the messy appearance.
