For one, your high end PC doesn't cost $500-$600, which is a harsh reality that must be considered. Of course, theres the argument that you can build a powerful PC and have the ultimate experience, but when one steps into this section of Beyond3D, it is assumed that one drops such an argument because its rather pointless.
When I was refering to the "smoothest overall experience in terms of framerate and loading", I made the assumption that it was obvious that I wasn't making a comparison between the PS3 experience and what you could achieve on an expensive computer running the latest mods. I was refering to the fact that even on the mid to highend computers, running those mods (screenshots that some were putting up continuously) brought the experience down on those terms and thus there really was no comparison. To me, that is pointless and thats what I was pointing out, and thats what swaaye acknowledged.
Secondly, you and I have no idea how it compares right now but the previews suggest that the PS3 version does perform competitively to a high-end PC - which we can only assume them to mean that while looking reasonably similar, the performance of the PS3 version approaches that of the PC. There is the issue of the PC version running higher resolution, AA and such, but the point is either that it looks similar to enough people or that when running at that res with the "mods" that the PS3 version received, they are similar enough.
I hope I have elaborated enough on my points, but if you wish, you can further talk to me on PM. Honestly, like I said earlier and again in this post, there is no point in bringing in the PC version.