http://3io9kj3rajqhyi3ej3xme9pe.wpengine.netdna-cdn.com/wp-content/uploads/2015/05/full-list-321x10241.jpgFrom the one you have a most positive opinion of to the least:
Jesus Christ (Self-explanatory)
Isaac Newton (Pretty much started modern science and indirectly all its benefits)
Abraham Lincoln (Played a decisive role in preserving the Union and abolishing slavery, playing a larger role in this then those below)
Franklin D. Roosevelt (Visionary man who envisioned a new social contract for American and a new order for the world, although his vision was but partially fulfilled in both areas)
George Washington (Helped achieve the independence of the Republic and set it on a stable course)
Winston Churchill (Saw clearly the threats of both National Socialist and Bolshevist totalitarianism, although in the end remained far too enamoured of the Empire)
Albert Einstein (Highly influential scientist, although the practical benefits of them as of yet aren't as big as those of Newton's)
Martin Luther King Jr. (While many others undoubtedly played a part, Dr. King was clearly the strongest voice in a battle for racial justice in all realms of life)
Sun Yat Sen (Had a great vision for his country, which has yet to be fulfilled)
Nelson Mandela (Served as South Africa's conscience and later led in to multiracial democracy)
Thomas Edison (Great inventor although many of his inventions were but improvements)
Gorbachev (The only decent person to have been the leader of Russia, although in an impossible position)
Martin Luther (Led Reformation, with its great benefits to both Religion and in the secular realms, would be higher if not for his significant flaws such as anti-Semitism and hatred of the peasant rebels)
Qin Shi Huangdi (Ended centuries of warfare, uniting China on a fairly egalitarian political philosophy)
Bill Gates (A fine philantrophist)
John F. Kennedy (A mediocre President admittedly, but a well-meaning one)
Pope John Paul II (Significantly flawed in many ways but did do significant work in social justice and for Polish freedom)
Deng Xiaoping (A terrible dictator but helped create a Chinese middle-class and avoid the Soviet trap)
Karl Marx (Interesting thinker who provided a useful new perspective on history, sociology, and economics but most of whose predictions have proven wrong and served as the philosophy of many murderous dictators)
Confucius (A philosopher with some good ideas but his worship of the past among other things set China on a bad path)
Mahatma Ghandi (Helped achieve Indian independence but also a reactionary and sometimes simply bizarre)
Saladin (A relatively honourable and humane general for his time)
Buddha (Some good teachings, others not so much)
Charlemagne (Probably helped bring some order to Dark Ages Europe but still in many ways a brutal conqueror)
Princess Diana (Well-meaning woman I guess)
Mother Teresa (A kind woman who nonetheless had absolutely horrible teachings that led to a whole lot of unnecessary suffering)
Margaret Thatcher (The destroyer of British social democracy, destroying the 1945 consensus)
George W. Bush (Typical neoliberal in domestic policy but with the added fault of disastrous Iraq War)
Che Guevara (A murderer albeit with a lower body count than anyone below this list)
Osama Bin Laden (Somewhat higher body count than above and did more to inspire future murderers)
Saddam Hussein (Murders mostly confined to a relatively small region of the world)
Napoleon (Plunged an entire continent into constant war, although in many areas he served as catalyst for reform)
Lenin (Established Bolshevist totalitarianism in Russia, although he began its industrialization)
Columbus (A horrible, delusional murderer directly responsible for numerous atrocities out of greed)
Alexander the Great (A bloody conqueror who established despotism over Greece and cut a swath of slaughter across the Near East, setting off a generation of warfare amongst his successors)
Mohammed (Same as above, although his the conquests he set off would end up going longer and affecting more of the world)
Mao (Established totalitarianism over the world's most populous country)
Stalin (Removed what little positive there was of Bolshevism, crippled Red Army etc.)
Genghis Khan (A bloody conqueror with far less positive consequences than any listed above)
Adolf Hitler (Self-explanatory)