hmmm, that first guy sounds pretty loopy, unfortunately that's not too uncommon in Africa.
And like I said earlier there should've been a mention of Enver Hoxha, who'd I put right after Mao. North Korea today is based on that guy more than anything else, plus he was basically Stalin-lite, he only doesn't have as much noteriety because he had a much smaller country, regardless he was able to transform it into a mini-1984 completely cut off from the rest of the world.
And there was also Ceausescu. OK he may not exactly rank up with the rest of them but I've always been "fond" of him because as far as all dictators' stories go, his has the most dramatic and happiest ending