I started with St Paulia, who was the one I liked the most out of those I started off with, then I got Nymphaea and stuck with her for quite a long time. Had I not gotten lucky with Alpinia I would have stuck with Nymphaea. I don't alternate unless I feel like seeing how a unit looks on the home page. I play with sound off 99% of the time, I guess if I played with audio on then my assistant leader choice would also depend on the unit's voice and her idle chatter.