Another question: Which do you think is better? A synth voice module or a bunch of modules to complete a synth voice?
-- baygiooday

Depends partly on what music you're doing and whether you need to work fast (as in live gigging) or not (studio work). If the former, you might benefit from some single-module voices. But if the rig is only going to see studio work, I'd suggest going with the individual module plan. Also, if doing music with complex sonic elements, individual modules give you the flexibility needed for that...such as for immersive ambient. But if you're aiming for a techno/EDM-type direction, it wouldn't be a bad thing to make your "bleep" and "bass" voices be single module voices.