IDK seems like he could be a funny guy from what I've read.
EG after signing the pact w/ the Nazi's he suggested they remove the wine glasses from the photograph - "people will think we were drunk".

interesting concept. who in world history would benefit the most from the knowledge we have today. I think Newton is an excellent choice

If he believed you. Newton was kinda a dick, and didn't like the idea that anyone might be smarter than him. Given his religious views, he might dismiss quantum theory as preposterous.

Mostly because no ones mentioned him...The prophet Muhammad

wasn't he just outwardly religious for obvious reasons? I just can't fathom a guy like that being genuinely religious.

Judas Iscariot. The reason is so I can ask him why did he have to act a fool and go betray jesus.

Oh no, he was very religious, but also very heterodox. He outwardly conformed to the Church of England (as was required of all Oxford professors), but privately he was working on details of his own theology that would have exposed him as a heretic, even by the relatively tolerant standards of the post-1689 Anglican Church. If you look at his writings as a whole, he devoted far more effort to his exploration of prophecy, Scripture, and theological questions. Part of his new vision of physics was informed by his radical belief in the "Lord God of Dominion," who worked as a sort of divine architect, writing in natural laws that only science could reveal.

Cesar, Sun Tzu, Li Si and ofc Stu Ungar

I would like to meet Napoleon between 1810 and 1812 to find out what is going on that leads him to become so indecisive and less the Napoleon of Austerlitz, Jena, Elau, etc.

As previously mentioned - he was INTENSELY religious. We are talking about at least 1/2 of his work dedicated to dating judgement day, genesis, and various other biblical topic. It isn't just an elaborate cover-up. One of the reason he was strongly disliked was due to its borderline heretical religious views. The heretical views of Newton are not of ''atheism'' as the 21th century physicist would like to see, but he was actually sometimes ''more religious'' then his counterparts of the Royal Society.

If you asked Newton what his main focus of research and goals are, he would undoubtedly say theology over ''natural philosophy''(the old name for physics)

He simply saw his physics studies as a way of understanding god; this attitude being the very popular among physicians all the way up to Albert Einstein. This is why classic physics is often said to end with Einstein; a clear shift from ''physics to understand god'' to quantum theory based on sheer luck, statistics and mathematics.

Ben Franklin-Prolly the greatest American ever
Thomas Jefferson-"The smartest president ever"

I actually thought a lot about this. I would probably meet Howard Hughes, F. Scott Fitzgerald, Walt Disney. I'll go with Walt Disney

Lao Tzu is a good one.

I think my first would maybe be the great beard technician of 1700 b.c., Hammurabi (and awesomest beard I have seen to date).

Nicholas II of Russia, to ask why he didn't fought the bolsheviks?

Caligula of course.