I'm no expert but I always felt that the bonus speed and assists from Ahsoka's unique rendered speed a lower priority on her. I use health/offense on her actually, even thought about switching to an offense or health arrow instead of speed. As far as GK, 3P0, and Padme go, that all sounds right to me too, exception being Padme's speed if using her as a Malak counter, in which case having her be the last to go on your team is supposed to be beneficial. As far as JKA, I think some people run full health on him and make sure he just survives to generate more courage and more bonus turns for Padme, though I haven't tried that myself.