Azatoth is right !
vi/wordpad win for availability, and beccause they are both powerful enough for a programmer (In fact mostly vi ;-).
And this point was discussed MANY times here in the monastery...
That's may be how you should decode the 'I hate this question' sentence...
(SuperSearch brought me code editor, an editor for perl, and this...)

Now some facts I'd like to add to help YOU decide
(you must realize that it's a VERY SUBJECTIVE problem, that can only be solved by YOU).

• Vim exists both on Windows and Unix
• Vim has a built-in perl API and can't execute Perl code on text...
• Ultraedit on windows is also a common choice among programmers

"Only Bad Coders Badly Code In Perl" (OBC2IP)