The DMC-122 with Gemini is probably the only real competitor on features. It had a big edge being able to have two non-organ sounds at the same time, but Hammond catches up on that feature now.
Too bad the DMC-122 has terrible pipe organ sounds in it. Otherwise it might be perfect for some churches.
I you want good pipe organ sounds, the one to get is the Dexibell Classico L3 ---- remarkable - plus it has a wide variety of other sounds also, including their wonderful AP.