Well i went to Bnos Chava a few years ago and loved it. I noticed that the Bnos Sarah girls (its right next door) got very close, like one big family- more so then in BC. not that we didnt but as a bigger more diverse school it wasnt the same bond that ALL the girls in BS shared. At that time (Mrs. Tarshish days) I think they had a more steady workload and a little harder then BC. meaning in BC we had the shoftim tests and then a couple papers that were over two over parts of the year, but they had a few more papers maybe not as big as the medrish paper (which was very intense) but as big as the other paper.
i dunno what it is now, but i heard that BC’s workload is comparable to what it was then.