I agree with your reviews of the three series.
As a child, my family often watched this https://en.wikipedia.org/wiki/Sherlock_Holmes_(1984_TV_series) and i consider that my benchmark for what Sherlock should be.
It unfortunately switched to different creative personnel in the later seasons and really suffered for it by making way too many changes to source material in the adaptations, but God, those early years really are wonderful. For a lot of people, that’s very understandably the definite take on Holmes. Brett is magnificent, and Hardwicke and Burke were both a great Watson.
I think the biggest negative factor in the later episodes was Brett’s health, which was seriously failing. The early years were astonishingly good, though. It’s hard to imagine a better interpretation of Holmes.