He was also, by all accounts, a twat. He killed his friends in bouts of rage. He was a brilliant strategist, but he did not really build anything that lasted. Some slivers of his empire survived, but not because of his actions. He might have lived the life he wanted, we will never know for sure. But I would much rather live the life I have, however imperfect it might be.
> Am I a better man than him?
Are you happy? Do you make other people happy? Do you support or help other people when they need, or side by them when they want? Those are more important metrics than the surface area conquered at the cost of tremendous suffering.
We remember people for their accomplishments, not because they were good as human beings.