The standard library is vastly different, as well as the set of standard features. They only share syntax mostly, and even then, Clojure has extended the standa

The standard library is vastly different, as well as the set of standard features. They only share syntax mostly, and even then, Clojure has extended the standard Lisp syntax. If you want a full immutable and functional paradigm, Clojure is best. Otherwise, CL.