MSN had an actually interesting article for once about in which states drivers performed the best on a standard test similar to the knowledge tests required as part of getting a license. Oregon and Washington scored the highest (represent), while Rhode Island was the worst. Shockingly, Florida was all the way up at #40. Granted, my experience with drivers in Florida is mostly limited to the Miami area and I've never been to any of the states that scored lower, but the idea that there are drivers even worse than that is terrifying.
When I visited Miami, we'd been in our rental car for almost 5 full minutes before seeing our first accident. It also seems there is some kind of law stating that your turn signal must not be used more frequently than the horn and all drivers must squeal their tires on red-to-green light transitions. Anybody else's states deserve to be higher or lower on the list?