Besides sounds and styles What would they be?
I would choose
1. Live drums
2. Vocal harmony 2
3. Upper 3
I'd really like to see more on/off control for the harmonizer. I think I could make a go of the harmonizer if I could more easily switch from harmony to no harmony in the keyboard. It would also be nice to have two or three preset buttons there.
An upper 3 would be helpful as would a lower two.