I think most of the modern boards are OK. Most of the time, you only need a couple of sounds, some layers, a split...and you're good to go if you're not in a six or seven piece band.
Now if you're in one of those, it all depends on what type of arrangements your church does, and if/you are color or lead keys. But at the same time, any of the newer ones do well. I love the Mo ES, but the that Bosendorf on the Extreme is nice too...
We use a Kawai stage piano for our services.
Craig