As per Jecklin disc, it is better for an overall stereo image: the baffle helps separate the channels - less smearing, better imaging. However, I am looking more for "virtual reality" and a wider image. I know headphones are best for playback of such a wide image, but for ambience, it still is way cool!
I am not familiar with "Fritz", but heard there is an inner ear cavity, and "flesh-like" materials to keep in lines of a real head. Am pretty sure hair and physical relief can contribute to a more "personal" feel, but I am not prepared to get totally crazy with it - just want the head (female/male/androgenous...) and use it as an optional mount for the 4060's - I figure a pin or rail attached inside the ear will allow fastening with clips, and I can flexibly space them however I want. In past experience, field work, and ambience recording is very cool with wide stereo, and I think binaural might take it another step for really cool field sounds, and possibly studio situations as well...
Plus it would get bonus marks for recording "appeal" almost anywhere (esp. if it looks like Barbie/Ken/insert fav. dummy here)