I would want to keep it to fandom universes but I would like to open it up to original characters. I think, in fic at least, they can be a really great way of opening up the canon, and in some fandoms (*cough*hobbits*cough*) it's really hard to focus on women without writing OFCs.

I don't have strong feelings one way or another though. There are plenty of canon characters who are awesome, and if the group wants to open it up completely that's cool too.