Just from an analysis of the various papers and pics circulating around I would say Obwegeser is the most advanced max fac out there. What tipped me off is that he mentions Tessier's protocols for moving bone segments of the face, that means he's pretty well versed in craniofacial strategies to improve the facial bone structure --while most max-facs technically have this under their belt, they don't really practice it, Obwegeser clearly does, and effectively. Too bad he doesn't take north american patients.