in reply to Perl for Windows ?
But to answer your question it would depend on what you are using perl for. If you are going to keep using windows then I would use a windows version. If you want to get real work done then I would use a linux or bsd version.
The main problem with windows is that you have to worry about all its quirks that you would not have in a unix system (including the Mac).
A picture is worth a thousand words, but takes 200K.