Just finished playing a multiplayer round and while I still have to reserve any judgement for the single player final release, I have to say that the demo certainly doesn't win any awards on the PS3 platform for best visuals.
While not a total blurry mess, it does look like a game rendered below 1280x720 with upscaling. The framerate was fairly standard for a console FPS and I saw no frame tearing, so the game is far from broken (it runs smooth enough for a console FPS) contrary to some early reports, but I wouldn't personally buy this for either console unless specificially to play people on XBL or PSN.
"Best visuals on console" is an exaggeration at best.
If you have a decent PC, I think it goes without saying which version you should buy.







