Oh, you know I'd just suggest my own. :D I think SGA was a good choice, actually, because a lot of ppl love it (I just never saw more than a couple of eps - I'm crippled that way!). I guess you could look at what's already been written here to deduce what the members know and love, or something like Dr Seuss or Friends that everybody knows at least enough about to be able to write it, even if they usually don't, and might be inspired. Jossverse fandoms would probably be safe bets too.