Now, this is weak. They didn't list Python, Scheme, Common Lisp, Perl, or PHP. Bah.
As far as object-oriented programming goes, though, I prefer Java or Objective C. The Carbon toolkit on OS X just rules.

As far as imperative programming goes, I much prefer Perl. It's a very compatible and versatile language. 'Nuff said.
As far as Web development goes, it's either HTML::Mason (mod_perl) or PHP.
If I'm dealing with math things, give me Scheme, Python, or Common Lisp any day.
Yadda, yadda. It depends on the application, the system, and how much code I expect to reuse. Java, Objective C, Perl, Python, Scheme, Common Lisp, and PHP all allow for tons and tons of code reuse to varying degrees, but there're a couple of languages there that don't readily have compilers for Windows or the BeOS or VMS, etc.