Python: slow, useless for threaded programming, full of obvious mistakes (anybody likes one-line lambdas?)
Clojure: a flaccid, viagra-less Lisp.
C#: basically same as Java, the yardstick on "boring" languages
How can they be exciting?!
However, I agree that Rust is exciting, very exciting, because it has fearless concurrency, zero-cost abstractions, move semantics, trait-based generics and efficient C bindings.