I agree with what many are saying here.
Since both consoles are running similar hardware--from the same company, in fact, when it comes to the CPU and GPU--the extra raw power will be much easier to exploit on the PS4 this time. GDDR5 will offer an advantage on top of that as well. It'll probably end up not being used as much with multiplats, though.
Really, though, you can't use trailers and E3 footage as visual proof of anything. Most of the footage is either straight CG, running on a "equivalent" PC, or is likely high-end "in-engine" cutscene footage far beyond the scope of actual gameplay visuals. We won't know for sure how this pans out until people start playing the games on the real consoles.








