Then you don't know enough. Pinochet prevented a civil war or Communist coup, saving tens of thousands (if not hundreds of thousands of lives). And he turned Chile into the freest, most prosperous country in Latin America. Arguably, Pinochet ranks up there as one of the greatest (or the greatest) ruler of any county in the 20th century.
...And speaking as a US citizen who wholly owns a Chilean company (based in Placilla, outside of Valparaiso) who spends three months a year in Chile, Pinochet also gave the country a modern infrastructure, public water that can be safely drank anywhere, modern sanitation, a capitalistic outlook on life, and success wildly beyond any of their neighbors...
Chile has free trade with most countries, a free-floating currency, transparent banking and business, strong rule of law, and a strong integrated democracy. Not to mention a very strong economy.
Having talked with my workers many times about Pinochet, to a person - old and young, male or female - they all say Pinochet did many bad things as a man, but great things for Chile. He should be left alone and make his peace with God. He's revered down there by most as a strict grandfather, who punished when he had to, but made the family - the fatherland - better for it.
Boy, howdy, I'd love to see the rest of your top ten.