Skyrim works definitely pretty well in Geometry 3D and looks gorgeous this way, but it’s also a prime example why Z-Buffer 3D, which is twice as fast (even a bit more in Skyrim), can be the better alternative in VR, even if both options are availale. At least in games that are not designed for VR.
Except maybe on extremely low graphics settings it will be impossible to reach 75fps outside in Skyrim with G3D, regardless how fast your PC is. So to reach comfortable 75fps Z-Buffer 3D may very well be the better choice, especially in longer sessions. Unless you are totally immune to any kind of simulator sickness a high framerate can be more important than perfect S3D, which is only one of many depth cues your brain uses to create a sense of depth.
Interesting read in this regard: http://en.wikipedia.org/wiki/Depth_perception