Well, perl and ASP are not mutually exclusive. In fact, ASP is NOT a programming language, and Perl is. And if you load ActiveState's perl, you'll find that you can program ASP in perl (though it'll be called PerlScript which is more Perl than VBScript or JavaScript is VB or Java), and in fact there's even an ASP module on CPAN that runs on Apache. So if you like the ASP environment, but want to program in perl, you can have your cake and eat it too :-)

If you want to compare PerlScript against server side VBScript or JavaScript, then that's another matter. Perl rocks, the others suck, and for many tasks you'll be writing one half to one quarter of the code in perl that you would have to write in (VB|Java)Script. And then there's CPAN...

For the client side (i.e. browser), then of course you're mostly stuck with (VB|Java)Script, though there is a PerlScript plugin available, I don't think I'd use it for anything but an in-house application (does anyone out there use it?). But then I'm not talking about ASP anymore, am I? :-)