Worst Dictators?

I saw last week's Parade magazine; it had a feature piece on the world's 10 worst dictators. Where's the list of the best ones? How bad do you have to screw up to be one of the worst of these guys?

Okay, so why blog? Because maybe, somewhere out there, someone's bored, and they'll stumble across my ramblings and get something out of it... even it just makes them say "Wow, it could be worse, I could be that guy."