And which language did you enjoy coding in the most? Yeah, a subjective question :-). (Edit: Missed the auto-generated part, so maybe you don't have an opinion on experience regarding this?)
As for Nim I enjoyed it initially (because of the Python vibes I guess) but the automatic memory management gets confusing quickly. IIRC there's quite a few different reference types - but maybe that has been simplified in 2.0
PS: Even though the bindings are auto-generated, I still try to make them 'language-idiomatic' by injecting some 'semi-manual' mappings for things like naming conventions or implicit type conversions, ideally getting the API close to what a 'native' API would look like - at least that's the goal.