Been going through a few language debates, just to see whether/how things move over time. It's still a nasty set of trade-offs.

APL - the terse language
C - the implementation language
Forth - the lowest high-level language
Java - the sellable language
JavaScript - the omnipresent language
Lisp - the malleable language
Lua - the RISC-like language
Perl - the TIMTOWTDI language
Python - the maintainable language
Ruby - the upcoming language
Tcl - the deployable language

Absent in this summary are the FP languages, as I know too little about them.