Oy Vey,
Savannah Belle is naustiating to the extreme. Sorry to be so blunt.
What about
Susannah, it still has the southern charm but not the cheap cheesiness of
Savannah.
Susannah Isabel might be a nice alternative.
As for
Brittany, I destest it more than words can say... only name I hate more is
Briana. What about
Bridget, similar sound... complete different feel.
Susannah and
Bridget would be lovely IMO.