Which sibset do you feel is more usable?

Jacob and Isabella. They are both really common top 10 names and the Twilight hype is dying down, so I think they could work. However, Hermione is really uncommon and if you named your daughter that then people would instantly think of Harry Potter which would be reinforced by her brother's name! Also, Hermione is a really long name that doesn't have great nicknames and that would irritate me :/