I can't imagine anything scarier than the Millennium Force. The Top Thrill Dragster is apparently taller -- and faster -- but it only does one short loop 20-second loop, versus Millennium Force's 1.25-minute dip and dive. Plus ML's first hill is a cable lift that accelerates as you ascend... so you don't just slowly climb over the top, you're SHOT over it! It's horrible! And then ML's cars straddle the track as opposed to being fixed in the track, so if you look over the side of your car, you see only the ground hundreds of feet below! It really is like you're flying.

I won't get on the Dragster because soemtimes the car doesn't make the first hill -- it just falls backwards! And you get the choice to get off or try again. That just seems wrong.