Very good point,.. but for a rich slave owner, compared to his peers, Washington was pretty decent,.. and he was progressive. Smoke it legal in Oregon
Peter the Great should be mentioned. He modernized Russia making the country prominent for the first time in history. The father of modern day Russia. He was also 7 foot tall.
If you believe he will have a reign on earth that is yet to come, then you know how that reign will be.
He is the single most important person to have ever lived, and it really can't be argued. I mean did none of the things generally associated with greatness, but he is the central figure of humanity.
Queen Elizabeth I could be in the discussion. She didn't conquer and kill a lot of people like some of the above mentioned. However, she did rule England for 44 years which is longer than most of the names mentioned so far. And it was somewhat of a golden age for England and helped to set their national identity. Shakespeare in the arts, the defeat the Spanish armada in war, and Sir Frances Drake circumvented the globe under her watch.