It's worth remembering that only on topic polls are allowed; if an off topic or silly poll is posted (such as "Which moderator do you think has teh sexxy?"), it will get closed. Unless I'm winning.
Would it be possible, for multiple-choice polls, to display the percents according to total number of voters, rather than the total number of checked boxes?
If I post, say, a poll asking "what core rule books do you have", and everyone answer all threes, the display will say 33%, 33%, 33%... It's kinda silly.