What prominent scholars and/or denominations hold to Matthean priority?

This question discusses the differences between Marcan priority and Matthean priority and asks about the arguments in favor of Matthean priority. My question is who holds and promotes this view. I heard the claim made that there are only a few scholars who hold to this view and that Marcan priority is almost undisputed. Is it true that the overwhelming majority of Christian and secular scholars hold to Marcan priority? Who are the major voices on the side of Matthean priority? Is there a reliable indication of what proportion of the scholarly community holds to Matthean priority or disputes Marcan priority? I'll also accept a well-sourced answer confirming the claim that Marcan priority is all but undisputed.