When we were looking for something to leave at church for whomever is playing bass, we went with an HX Stomp. Cheap, has everything, can update, have presets for different people, etc. It works great. Just tossing it out there.
The Empress is a great compressor. I had one before I went Stomp. The ParaEQ Deluxe is also awesome.
I'm finding that I don't use effects much at all in church. I use octave once in a while when I'm playing long sustained notes and want kind of a synth/pad effect. I guess I've used a light drive on a chorus or bridge on occasion, but really, it would be fine without.
Before I went Stomp I was looking at the Bergantino Super Pre DI pedal. It had everything I thought I wanted, good preamp, compressor, drive, lots of options. If it had come out sooner I'd probably have one. I went Stomp instead as I also use it for synth bass sounds and it's my "all in one" solution.
As much as I like it, I still long for my REDDI tube DI sometimes. There's a Noble I'm almost ready to pull the trigger on as well. And I'm curious about the Bergantino as well. G.A.S. sucks. The reason I hold strong to the Stomp is that it does everything and I don't have to haul my big synth around.