Dauros was fun and effective, and that "line" of religion was probably the only really useful one as far as efficiency went.
But I loved those damn Fervus cultists... Their baffling routines and manic chatter burrowed into a very special place in my heart... Also, they had brilliant names. The DF name generator would have been proud.
Although the monks were very powerful and the healers were unimaginably useful, it was very interesting to see a settlement that had been running a while with a bunch of cultists and priestesses... Gathering more minions was simply a choice of what to do with their spare time, and as far as I could tell there was no limit to how many they could have. I'd often have temples to Krypta that were surrounded by an entire army of the undead, most of them skeletons but with the occasional tamed vampire thrown in here and there.
The nifty thing about priestesses and cultists is that they can take advantage of the normal "pains" of a growing kingdom. Cultists can snatch up rats that spawn from the sewers, and graveyards provide even more cannon fodder to help out the priestesses.
I remember cheating like a madman back when I was playing... My favorite was the level up cheat, and I learned to type that in multiple times with blinding speed. I could stack up five of those before the message line moved up a notch.
The highest level I ever cheated someone to was something over one thousand... Absolutely no need to push them that far, and it took a bastardly long time to do it. I've even forgotten what type of hero it was.
Anyways, I remember having the darndest time getting certain heroes to go out and buy something to keep them alive! Then I discovered how you can "donate" money to a particular person... Just place an explore flag in front of their nose.
I'd do that sometimes in a crowded city, just to spread some love. I loved how almost all the cash would just get recycled back to you, letting everyone profit.