In politics, a lot of discussion has gone to answer this question: Who should rule? Should it be the strongest? The smartest? The most popular? The divinely blessed? The oldest? And each generation should we pick again, or go be heredity?
That last question may have given it away. It implies that our leader should remain leader for his whole life! But we have term limits on presidents for a reason... See, the point is that 'Who should rule?' is entirely the wrong question. Any answer at all, doesn't matter who you pick, is a recipe for tyranny -- for one leader who's policies, bad or good, rule our lives. And yes, if you put a lot of energy into selection, maybe you can find a benevolent dictator who will have mostly good policies, and few bad ones. But that is still tyranny, and the hope of only having to live with "a few" bad policies by my King is just not that inspiring.
The answer to the question is to instead focus on: How can we set up our government so that bad leaders and policies get corrected? And that -- having a system open to criticism and change -- is the answer to tyranny. Picking the right tyrant in the first place is *not*. (unless it's curi)