You base your findings on games that were developed for the Xbox 360 and then ported to the PS3.
We are now in the process of seeing games being initially developed on the PS3 and then ported to the 360, we have seen this happening with Burnout Paradise. The PS3 version is better. And there are a few games in development at the moment that are being developed primarily on the PS3, being Dead Space amongst others.
Once these games come out, then we can make proper comparisons. Also what about a few games that are and have come out later and are better on the PS3 like Oblivion and going by reports Bioshock.
Prediction (June 12th 2017)
Permanent pricedrop for both PS4 Slim and PS4 Pro in October.
PS4 Slim $249 (October 2017)
PS4 Pro $349 (October 2017)
