Who do you think has contributed more to science and why: Carlos Sagan, Neilie D. Tyson, or Alberto Einstein

Explaining science to the public is important.

But Einstein was (arguably) the greatest scientist who ever lived.

I've never heard of any of these three people; perhaps you mean Carl Sagan, Neil DeGrasse Tyson, and Albert Einstein. Of these three, Einstein was by far the greatest scientist, having made major theoretical contributions to science in the form of his Special and General Theories of Relativity. Sagan and Tyson are/were good scientists, but contributed more as popularizers of science, rather than making major original theoretical contributions.

Evariste Galois invented a new branch of mathematics, literally overnight: he pulled an all-nighter writing is ideas on paper, and in the morning he faced a man in a duel and was killed -- he was 20 years old.

Isaac Newton invented calculus -- before he turned 26.

Galileo Galilei was arguably the first one to do "science" in the way we recognize it as such.

Antoine Lavoisier inaugurated modern chemistry -- and was sentenced to death by a judge who proclaimed that "the republic has no need for scientists, or chemists".

And I'm just mentioning the subjects of Mathematics, Physics and Chemistry here.
So your knowledge of scientists is still quite limited, and you should look at others before casting a final vote.

Of these names, and those you misnamed, I vote for Isaac Newton.

Einstein

Copy/paste troll fail.

You have asked this exact question more than once. You do not seek legitimate answers. You are wasting people's time.

Please refrain from asking the same question over and over.

what? No option for Bill Nye?

I would say, of the three, Einstein is probably the one who contributed the most.

none who is "alberto"?

the first cave man to control fire