I just don't use semicolons all that much, do you? I mean I use them for lengthy lists with numerous commas, but, really, that's about it. So, I wasn't surprised to find that my punctuation mark is the colon instead. (Quiz via Bookshelves of Doom.) So, yeah. I'm a little bossy and emphatic.
Speaking of punctuation marks...here are two great pieces on the semicolon:
And Now He's Dead: Semicolon; Punctuation Mark
And the evidence for the Gawker post: Jon Henley on the Semicolon for the Guardian. (Lots of writer opinions on the semicolon as well.)
What's your punctuation mark?