taste and high are a personal choice
try both if possible
in the long run, butane supplies are more costly than ice... but time and physical exertion is much lower for BHO... but danger might be higher...
IMHO the higher yields with bubble-hash are prolly due in part to the impurities of added plant matter
but also cuz the processing of bubble-hash leaves the trichome membranes solidly intact and the resulting cannabinoid concentrate is a solid
with BHO, the solvent chemically breaks trichomes open releasing cannabinoid contents... and these oils have a more liquid form, and are more readily melded and tightly compressed together
both seem to be quite efficient methods of cannabinoid extraction
~i hypothesize that, impurities removed, mass of yield would be closer to equivalent than volumes, with BHO yielding less by volume
and this is why i consider BHO to have an overall higher concentration than bubble-hash
i personally would choose bubble-hash
but that's cuz i already prefer the iso honey-oil and like the idea of completely chemical-free extraction
which may also be a point for purity IMHO
and IMO vapour is excellent-- but smoke is good too
and bubble-hash is prolly the most pure kind of hash possible
Pen