It's funny how often this conversation comes up, offline and online. Out of curiosity, a PM search produced these interesting vectors on similar questions.
in reply to perl 6
They are quite interesting reading. Hearing many veteran Monks' comments and experiences was pretty useful. Take a look!
These are in no particular order, plus, I'm confident I must've missed some threads in my searching/reading.
Plus, there's the Perl Mongers; the Perl advocacy people, and Tom Christiansen has a "Perl vs...." page Here.
Spending some time on this was very good for me just now. Thanks for bringing it up.