I associate the name
Deanna with
Brenda in my head. Both names are perfectly fine and not unattractive, but are are evocative of a specific era to me, yet continued in relative popularity until well beyond its sell-by date.
Deanna is more primed for a comeback, I think, than
Brenda.
I'd prefer
Diana myself, but
Deanna is fine.
Andrew
put a smile on your face - make the world a better place (: