With the ubiquitous ownership of phones that now have cameras that take pictures that are clear, not grainy, and have the megapixels to be able to see what you will be getting.....I definitely prefer candid shots.
I have also added camera phones as a means of screening. Most girls do not mind snapping a quick picture with some stupid sign, or signal.....so that I know she is real and that this is what she looks like. I mean, the photo is maybe 30 minutes old when I get there. Picking what the sign or signal is, and making it something stupid that no one would have fake pics including....is an added layer of security screening that I have not had any complaints about. However, should a lady ask the same of me....that would be a deal breaker, but to me that is the nature of the hobby...girls do face shots, but I do not want girls having a face shot of me. There are plenty of girls that do not require this, so there is no need to frequent those that do. My .02's