I've never grown BB Jalapeños, and tbh, I'm not planning on it. The Zapos produced a nice number of pods. More per plant than Earlies, Ms, TAMs, and Conchos. Not as many as the Vaqueros, but pretty close. They are hotter than the other Jalas I've grown, but i never really grew any that were supposed to be hot. CPI claims a pretty high SHU for the Vaqueros, but they weren't particularly hot at all. Conchos are supposed to be pretty mild, and mine were big, extremely mild, and pretty blame. TAMs were supposed to be extremely mild, but they were a bit hot (far hotter than the Conchos) with nice flavor and pretty corkin'... The flesh was oddly mealg, though, and production was underwhelming....
I guess, at this point, I've only grown a half dozen different Jalas, so I'm not that week versed on it.... Maybe the Zapotecs seem great to me due to a dearth of competition. But I'm definitely impressed.
I haven't grown Farmers Markets, but i think i remember reading somewhere that they are not really related very closely to other Jalapeños. I guess they got the name bc of the shape, color, and awesome corkin'... I might be completely misremembering it, but i think i read a hypotheses that Farmers Markets are actually derived from an old Euro variety of annuum...?
I think I'll want to grow them, but I doubt if I'll use them for topical Jalapeño uses/recipes..