Things like:

if ($me == Yoshi && $nick !isop #) { notice $nick Only Draven can use this command!

shouldn't be used in scripts you make public. Also using hard coded #channels in code is sloppy as well (not that you have done this, but in general).

Slacker has given great advice with his !%quizq and %quizq suggestion. And using things like unset %vote.* will make your scripts cleaner and look better. If you don't understand what he's referring to, from the mIRC help file:

/unset [-s] <%var>
This unsets and removes the specified variables from the variables list. If you specify a variable with wildcard characters then all matching variables will be removed.
/unset %test*
This will remove all variables beginning with the word %test.