I love BBH dipes so much, but I disagree with the previous poster. None of those other brands fit like our BBH at all. Our babe doesn't fit in anything front-snapping, but her small side-snap BBH fit like a dream. Candy doesn't make a medium, just newborn, small, and large I believe, but the small fit for quite a while.
I personally find that some other side-snapping diapers are close. Mudpies, Berry Patch, Fussybutt, Sugarbums are some others that fit well and are absorbent.
Of course, these aren't any easier to get, unfortunately!