Programming language choice

I'm very sick of the prog lang debate -- we seem to be spending 70% of our time on it instead of AGI!

Currently our strategy is "mixed language".

Acceptable languages are the "standard" ones:

Standard version	.NET?	Java?
Lisp/Scheme	IronScheme	Clojure
Prolog	--	--
ML/OCaml	F#	OCaml-Java
Haskell	--	--
--	--	Scala
Python	Cobra	Jython

where "--" means under development / coming soon / still immature.