Hm, I guess a Prince is higher in rank than a Visser. But there are no Princes among Yeerks. I don't think the Visser would willingly follow anyone who isn't Yeerk and I bet Prince Nuada wouldn't want to follow an alien. I think there would be a power struggle, possibly a fight.
What do you think?

I can leave the position of leader open for now and you can rp the two. We can discuss it on the OOC side with Melinda, if you want to.

If you rp those two I'm going to have to find a way to let my Rachel watch. :-)) She'd so be on Nuadas side.