My uneducated guess from reading the forum over past few months would be, for the people that wear partials, eighty percent use super fine swiss lace.

For the regular full piece wearers, eighty-five percent wear some form of lace front (again, most of these SFS but some french) for a realistic hairline. For the rest of the piece, maybe one third of these have a full lace piece, the rest have some combination of thin skin or mono.

Would be interesting to know more accurate statistics if anyone even really knows.