I have both of this lenses for Leaf AFI7.
For people images I prefer Zeiss, for anything else Schneider is much sharper lens.
This is a general rule across the whole line of Zeiss and Schneider lenses. I find Schneider lenses superior glass but way to sharp and contrasty for eye pleasing female portrait.
On the other hand Zeiss is more contrasty than Mamiya Rz glass. I found the last one the best suiting for my needs.http://AndreNapierStudio.com
That's an interesting perspective. Yesterday I shot some polaroids with my 60mm curtagon - totally different than with digital (sorry I can't post them). But the film takes these lenses differently than digital. Definitely when you get down to it, probably for portraits and particularly of women, film might still be the way to go. Totally different look than digital. I'm sure with some work you can emulate it. Easy to knock down sharpness and contrast but a bit harder to go the other way.