What do you think of the combos I listed, though?Hillary shouldn't be paired with Afton if you think the latter is "snobby but shallow," I'd argue.Afton Sotiria and Afton Hortensia are gorgeous.
I just picked a name that felt similar in style to Afton, and I imagine a parent that chose Afton might also like Hillary. Of all your choices I'd go for Afton Rosemary. Rosemary is homely and sweet and balances out Afton's hardness.