Court of Owls is a meh retread of the original False Face Society from the 60s as well as Morrison's Black Glove from a few years prior.
That and Dr. Hurt in general has my vote. It's interesting that the past 15 years of Batshit has been various writers playing with Morrison's toys(Court of Owls aping the Black Glove's Eyes Wide Shut vibe, King's Thomas Wayne as a retread of Batman fighting a twisted version of his father in Dr. Hurt, the entirety of Snyder's Heavy Metal shit revolving around Barbatos, etc etc)