To be honest I haven't played any in a rp setting, only written about them in fanfiction. I think I'd be most comfortable playing as Corrin, Felicia, or Azura, but I'm willing to double playing as another character if needed.
Ooh I'm interested. Very interested. Are you opposed to romance? Specifically maybe Moon x Gladion? I could also play as Lillie, sibling wise. I have some plot ideas of my own if you would like me to PM you too. :)