I pretty much stick with the pianos, ep's, organs as, like Dave, I'm mainly a singer (I will play an instrumental if asked). I do like to have some pad in the left hand, Dark Pad mainly, to round it all out, and my accompaniment tracks are all selectively muted or tweaked.
Like Diki, if a sound requires bends, in general I stay away from it. The only exception might be on a rock guitar sound, and even then my use of the joystick is, let's say, conservatively judicious. There's two of us, and we do use the harmonizer, but again not excessively. Taste in all things. I'm not of the 'everything but the kitchen sink' school.