[silentbicycle]

If being able to update code from a REPL while it's running counts, then yes, though OCaml and Haskell (AFAIK, less experience there) usually involve more edit-compile-reload, to take advantage of the utterly superior compile-time checking. OTOH, Erlang handles "change-in-flight" even better than Lisp does. Of the four, I prefer Erlang, but they're all respectable.

I use Lua both standalone and with C. (Its convenience with linked-in C code won me over from Python, actually.) It's my favorite general purpose language. Nothing against the great performance, but it was a great language before LuaJIT even existed.

Datalog also has a lot of potential as a data format. The industry seems to forget anything invented more than a fortnight ago, though, so it's probably passe until somebody charismatic finally invents it.