Have you actually done any work with XSLT?

Nope, but see this Kuro5hin.org article on XSLT, which is the reason I don't bother at all.

Have you actually written dynamic webpages in PHP . . .

Yes, I keep knocking my head against it's limitations.

. . . or written OO code in Python or Ruby?

Yes. They're both cleaner than Perl OO.

How much text processing have you done with awk/sed/etc?

Hardly bother to use them, since Perl does what I want.

Note that I was very careful with the wording of each of those statements. PHP is simpler than Perl. Python/Ruby OO is cleaner. Sed/awk/grep/etc. are more specific to text processing. And XSLT is arguably superior (though I wouldn't make that argument myself, clearly somebody thinks it's better (even if they're PHBs) or it wouldn't exist). These are very specific statements of overall "goodness".

What I didn't say was that they were all absolutely superior. Particularly in PHP's case. It is simplier, and that's preciely why I don't like it.

Update: Speeling mistake. Thanks tilly.