This might sound banal to some and familiar to others, but I love writing Perl code because... it's simply fun !
This is more than TMTOWTDI (hmm... TMTTMTOWTDI ?), I simply feel "the force with me" when I have to code some task in Perl. Its versatile constructs, combined together give a developed a lot of power !
When things are easy, they are fun - it is a fact of life (it is much more enjoyable learning something you understand), and Perl makes many things easy. If designing a clever & efficient algorithm is required, I doubt that any language gives an advantage, but Perl helps with handy tools, and makes all the tasks around really simple and quick.

Just my 2 c.