I am so into your girl list! I think Mavis wins for me. Georgia is a close second. But Greta is really great too! I suggest you have a bunch of daughters! :)
From the boy list I like Felix. Reo & Arlo are not for me. The playful O ending is cute on a little boy, but it doesn't feel as dignified for an older gentleman imo. Felix feels like it has more substance. Vowely names feel airy to me.