I would say choose who is best for that update. I think that way we will get a more diverse selection of girls and scenes. If the same people are picking all the time then we will most likely only get the same one or two girls.I'm considering whether I should keep letting my patrons decide which girl is featured in the bonus scenes, or if it would be better if I choose from now on based on who fits best for the story.
I'd like your thoughts on this. If answers are divisive or inconclusive I'll do a poll on it for patrons. Stay classy!