Roy and Lilina are the only ones I've used from your list haha :')
I have used Rutger, Ellen, Ray, Sue, Thany and Fa in my first playthrough but I usually alwys stick to my dream team in all following playthroughs of any FE game >,<'
Grats on Radiant Dawn! It's one of my favourites! But best don't play it until you've finished path of radiance! :3