Guys, I actually can´t really understand the whole discussion. I mean of course, Ubisoft had to communicate technical differences better, but after all, the game looks still really good.
I already had the chance to play it for around 5 hours. Last year the PS4-version for 2 hours and last week for 2,5. Yes, there were some little technical issues, like cars apearing suddenly while driving fast on the other street side and some anti-aliasing weaknesses, but overall, it still looks very good and can easily compete with Assassin´s Creed on PS4.
The discussion is all about totally crazy comparings, the first PC footage confronted with PS4 gameplay, night-scenes with day-scenes, different light-scenarios, rain and sunshine. And yes, compared to that high end PC-version with all that exclusive Nvidia graphic-features, the PS4 looks worse. But I´m totally sure about, Ubisoft will improve it until the release and finally we get a great next-gen-experience with the release-version.
The gameplay is the most interesting part, and if you really worry more about the graphical look instead of thinking about the content, the dynamic situations, possibilities with NPCs and the AI, then you will probably miss one of the best upcoming games in a while. A new and fresh scenario, mixed with fast and dynamic gameplay with cool characters. Give that game a chance and if you want to see high-end graphics, get the PC-version!