I loved Smalltalk when I had to learn it for my first job out of college. Clean and clear OO with a flexible, play-inside-of-your-code runtime. Unfortunately the Smalltalk community is pretty small.
So imagine my delight when I found Ruby in 2005. It took the best of Perl and the best of Smalltalk and gave it a much better syntax than either, plus it had a massively growing community.
Ruby breaks a lot of the rules for what people claim they want (or should be allowed) from a programming language these days, but for me there’s still no more joyful and easy programming language to express my ideas.
Not all the best parts of Smalltalk, otherwise a IDE based experience with a JIT compiler would be there from the early days, that is an integral part of Smalltalk experience as developer.