For people using the CPU and AI argument, I will let you know ps4 has more lanes in the Gpu than xb one for GPGPU. That was done in purpose and mentioned by Mark Cerny several times as a great benefit for this generation compared to the previous one, so if devs don't use it and are taking the easy way out putting the blame on CPU just to meet a business contract or just to avoid "debates and stuff" they do deserve all the backlash we can give them.
Proudest Platinums - BF: Bad Company, Killzone 2 , Battlefield 3 and GTA4