clojure vs haskell

I write C/python/javascript everyday at work and I wanted to mess around with a functional language at home.

Right now I'm leaning toward haskell because I figure It'd be more usefull for little scripts and parsers since you don't have to wait for jvm startup.

Also I don't know java.

I'd mainly be working on graphics programs with opengl/penumbra.

neither, learn Scala

Scala is a very easy language to learn, very similar to Python and Ruby in its syntax and the way it combines functional programming with OO. Scala is as fast as Java, which is a very vast language, faster than Go, probably the fastest VM language. Scala has very good concurrency/threaded programming constructs which is the future of programming. Clojure is not a bad language if you like the Lisp style of programming. But Lisp programming requires a complete change in style of programming whereas Scala is really no different than Python except it has static typing and type inference instead of dynamic typing. Haskell is a very difficult language, it requires a complete conversion into the functional style of programming, it has zero toleration for imperative programming style.