Avenue Q is a great choice if it's before it closes.
OFF B'way shows run a good deal on Sunday nights:
Fuerza Bruta (awesome performance art -- exhilarating, really)
Altar Boys(Has fun with religion without MAKING fun of religion_
Toxic Avenger (offends everything and is funny as hell)
Our Town (great reviews)
Blue Man Group
The Fantasticks
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.