i also agree here, the 3d modeling in nvidia 3d vision (with compatible-enough games) is perfect. as in the 3d is true 1:1:1 xyz depth ratio with the correct settings (unless there are other behind-the-scenes visual tricks being implemented that are unnoticeable when rendered in 2d). however i will agree with you that they are placing their own "artistic stamp" which is separate from the developers in terms of how the cameras and depth should look. i have seen virtually every ps3 3d game (and they use varying techniques), and many nvidia 3d vision games (with a variety of compatibility ratings) and am very susceptive of artifacting of any kind and there's nothing in 3d vision that shows to me that it not true 3d...even if it is tacked on. i have no complaints with it (though i have no experience with how their api is limiting or what not to letting developer execute their vision). and in reference to performance, 3d vision does take the expected ~50% hit on the framerate due to being rendered in stereoscopic, but with powerful enough hardware, going from 100+ fps to 60 won't be that perceptible.
anyway in reference to what i was originally saying, flying around in arkham city on pc doesn't look A LOT better or like it has much more depth than it has on ps3 (which uses reprojection 3d)...but flying around in harry potter and the half blood prince does look accurate, so it's not as if every game is limited in the way arkham city is. but close-up fighting in arkham is accurate in 3d vision, and ps3 is not (but is still ok looking).