I chose Ada. Sadie was my dogs name so I can't imagine it on a person.
Ada was on my list, but my brother made fun of it, a lot, so I dropped it quick.
 

Quoting TracyLynne!:" None really.. =/ Sadie reminds me of a golden retriever or Collie... Idk why but Brianne sounds good to me."

Ha. My golden retriever growing up was named Sadie.

I like Isla the best from this list, by a long shot. It's unique, has a cool sound to it, I even like the spelling. Yet it's a name that's been around for a really long time.