Sadly, I believe all of these ports run slightly different dialects of Clojure (beyond the things that must be different, like interacting with code written in other languages).
ClojureCLR and ClojureScript are not Clojure dialects - they are Clojure implementations. I'm not sure what the creators of clojure-py intend and Joxa is not Clojure as far as I can tell.