More specifically, my favorite would still be (as anybody who knows me from PIPORG-L already knows) Pamela Decker. Other women on my "favorites" list would be (in no particular order) Diane Belcher, Chelsea Chen, Claudia Dumschat, Carole Terry, Mary Preston, Alison Luedecke, and Barbara Dennerlein (but only on real pipes).
Other female organists for whom I have great respect include Cherry Rhodes (almost, almost made the "favorites" list), Gwen Adams (who would probably have made the list if she'd done more than one recording), Melissa Ambrose (who did one of the few theatre organ recordings I can stomach), and Carol Williams (of all world-class organists, I would regard her as the most "omnivorous," having recorded on trackers, tibias, tonewheels, and even a home-model digital; that characteristic makes her ideally suited to her post as San Diego Civic Organist).
Living male organists on my "favorites" list include Felix Hell, Peter Sykes, David York (my teacher), and maybe one or two others.
James H. H. Lampert
Professional Dilettante