For nearly twenty years I have used a church of deicidalist "godless" clerics who have usurped the divine magic as a focal point of my campaign. In the beginning (i.e. 1st ed) I was ridiculed by a few players, but most took well to the concept. I later felt validated when the 2E Priest's Handbook included their more abstract clerics. I have also found it is the aspect of the campaign most remembered by past players, so up with the godless clerics.