The poll omitted artillery. I like things that go BANG in the night. Or day. Cannons, ballistas, catapults: all good. But the cow-tossin' trebuchet ... now that will take the starch out of an acre or so of nasty little people with spears in a hurry. Get them milling around and puking, then drop burning rocks and arrows on their heads.

That's what I think of when I hear "I'm gonna get medieval on yo' a**."

Failing artillery, archers. I see no sense letting the other guy get close enough to hit you if you can avoid it.