Only ever experienced B+, Australia, and 'Shooting Star' cubensis.
They're all the same shit.
MS (multispore, ie. from sporeprint) is a genetic lottery, every strain is as variable.
Cloning you chose your own genetics (or at least narrow them down).
so really, as the saying goes: a cube is a cube is a cube.
Cubensis is one of the easiest mushrooms to grow and source, however, B+ has somehow obtained a reputation as 'the noobs cube', but be warned, it also has a reputation of having higher rates of impotent (low-no drug content) flushes, though if you were to think about this for a second; more people growing B+ than other strains + higher REPORTING of impotence = of course you're going to see more reports of impotence if it's more widely cultivated.
also be wary of purchasing 'named' strains. As with any drug, the guy trying to sell you 'Super XXL motherfuckin badass tripboy' for 30$ more than the '<country/origin name>' is probably taking you for a ride.
(i got my SS through trade

)