If I have to choose(just for me) between common and scheme, clearly I'll pick scheme. That said, if we are talking production code and a many programmer setup, I'd probably pick common. Mostly I'd just as soon avoid picking. At the moment I'm writing my PGN parser code in newLISP--- and having more fun than should be legal. Will have to go back and change (update) my CPAN modules based on things I've learned in the comparison. Can't wait until I move on to common and scheme; I'm sure I'll find even more code for thought...
--hsm
"Never try to teach a pig to sing...it wastes your time and it annoys the pig."