I believe historians will judge Obama to be a very good president of major historic significance, so that puts him in a special category...so greatest is a fair analysis. It's not a thing anybody could do. Took an unique individual. He broke the racial barrier and proven to be smart and hard working. In the aftermath of his presidency it's often difficult to remember what he did (partly due to the current chaos) but he had a very steady hand, represented the U.S. in the best way possible and regained respect for the U.S. (Remember Dubya and Uncle Dick were viewed by the rest of the world as war criminals and evil doers.). Heck, even the Queen of England took a liking to him.

If you need a sports analogy, think Jackie Robinson. He had good stats, was a real gamer and multi-tool player but he carried one heavy load like no other and did well despite the racism of the day.

Obamas extra burden of racism wasn't as stark and heavy as Robinson's, given the era...but make no mistake, he was hated in some quarters simply because he's African American. Need a current trend to how real the racism was...well Trump and his wing nuts, tea baggers and Nazis have made it their legacy to destroy what Obama accomplished.

I like Obama mostly because he's a self-made man. (I put Bill Clinton in this category as well.) I like people who really do pull themselves up by the bootstraps because that requires real fortitude. No being born on third base with a silver spoon in your mouth. No family legacy like the Bushes, no advantages and privileges of race. For god sake, he's the son of an African scholar and was raised by a single mother with help from her parents...in Hawaii.

Conversely look at the current guy in office. Everything handed to him and he's a pathological liar, a criminal and he will go down in history as the worst ever.