Bnos Sara – Is very frum girls usually from Yeshivish families, to make a blanket statement about every girl is foolish, every school has a mix. They learn ALOT and cover ALOT of ground. It IS academic.
Bnos Chava – has a much bigger mix. Its a different type of academic, the girls are *usually* intellectual (no hard or fast rule here). Not all girls are Yeshivish per se, but sincere and Frum, a lot of Flatbushers.