Here we go again with the "PC is the leading platform" bullcrap. It was theorized during the development of Dark Souls II, and was proven wrong.
The fact is, there are many ways to misinterpret the PC as being the lead platform. Just because you're letting the PC version become a primary consideration during development, it doesn't make it the lead platform. Just because you're ensuring the engine for the other two versions (Xbox, PS) do not end up being incompatible with the PC version....does not mean the PC will be the lead platform. And finally, just because the developers are putting in more effort into the PC version, presumably because they have less experience and expertise on PC development, doesn't mean the PC will be the lead platform.
If the PC were the lead platform, the devs have to make the PC version first, then decide to downscale or port to the other platforms, like Witcher 2 and Diablo 3. If any of you know how Japanese developers work, you'll know that won't be the case. Not to mention that Namco has always prioritized the arcade version of Tekken even before any console version, much less the PC version. And if Namco intends to use the PS4 hardware in all arcade machines like they did with the PS3, you better bet that they'll make the PS4 version first.
But don't take my word for it. Just wait and see if the PC version comes out first. Quote me on this.
DS2 might not have been lead on PC, but it surely was far better than its console counter-parts.
And what are you comparing here? Performance of a game on an 8 year old hardware versus current generation PCs? It's true that there are games that manage to even screw that up like GTA4, but it's not difficult to perform better on a much more powerful hardware. You're looking at the absolute threshold and not relative performance here. Is it a bigger achievement to have a game that looks as good as The Last of Us on an 8 year old hardware, or Crysis 3 at max settings on a PC with GTX Titan SLI?
Dark Souls 2 seemingly ran better on PCs due to raw horsepower. Simple as that. And don't forget that the game needed heavy modding to look acceptable by PC standards.