I thought Omikron BASIC [1] was even better

but both were really awesome compared to what existed on other platforms back then. In particular, I liked their documentation. Those were great times for documentation (not just BASIC, also TOS, GEM etc from that time more than today's. Either there were more qualified tech writers per product, or the products were simpler ... or maybe just nostalgia.

[1] https://de.wikipedia.org/wiki/Omikron_BASIC