Arguably, three of the most notorious charlatans of all time were Jim Jones, Adolf Hitler and (the alleged) Jesus Christ.
Although Hitler did not lead a religious cult he was known to be devoutly Catholic and clearly let it be known that he had a mandate from God to carry out the elimination of Jews. He was also fully backed and financed by the Catholic Church.
But let's take a look at the facts:
Adolf Hitler was a distinguished soldier, fine dresser, a vegetarian a non smoker and drank very little. He was known to have been responsible for the killing of 6 million Jews during the holocaust.
Jim Jones was a charismatic, rapist who was responsible for the murder of over 900 of his followers.
(the alleged, by some) Jesus Christ was a low-paid hippie-like carpenter's laborer who, like Jones conned his followers into believing that he was the son of God. He was responsible for the persecution and murder of more than over 8 million of his deluded followers.
You be the judge. Who was the worst of the worst?