Doc,
With your love of dictators it is too bad you missed out on a few of the great ones.
Genghis Khan and Attila the Hun. Perhaps the word dictator isn't even appropriate for these two.
At one point Attila even had the great Roman Empire paying tribute to him, he was a an admirer of women with numerous wifes, ultimately poisoned by one of them, perhaps he was hobbying on the side.
Castro does seem like a pussycat next to them, never the less he has definitely earned his retirement in hell.
Trump will never even come close to Castro, but Putin could very well be your next poster child.
I wasn't born yet when good ol' Genghis Khan and little Attila 'the Hun' caused havoc. So that's why i haven't really bothered to study them much.
You forgot to mention the Shah of Iran. If there was ever a brutal motherfucker that was backed by the Americans, he was it!!! The Americans loved the Shah!!!! One of the most brutal dicks on the planet at the time of his reign of terror!