That's a question that I want us as TPF to be able to answer, in ready form for people to refer to. I want one of you, out in the Perl community, to work with me to write the set of pages that answer that question.
If you would like to work on this project, please email at andy at perl.org and let me know. This will be a writing project, not an HTML project, so don't worry about web chops.
I welcome your comments here in this entry, too. They may give us ideas that we can use in the final pages. Note that the question is not "Why is Perl better than PHP", but rather "Why should I use it?" The former question is purely a mental exercise, and the latter is a pragmatic one.