I think I can win on the finial front by adding the "live edge" to the tops of the rails.. I think once she sees it without them, she'll see my point of view.
As I said, she really wanted more curve but, to pull that off, I'd need some monster material! By going with this design, I can get it out of a 9" board without laminating. I really didn't want to laminate because the grain match would be difficult and I didn't want a showing seam. Plus, if I did laminate to get a wider top rail then, I would need to also laminate to get all the other parts to match the width.. My scrap pile would be horrendous as well as my final bill at the lumber yard!