[asteroidbelt]

> You elect the candidate that the most people approve of, regardless of whether or not there are other "stronger" candidates.

It may be a strategic voting: I approve anyone who is not democrat (or republican).

> The population would be better served than if one of the "strong" left or right candidates were elected.

Not necessarily. Perhaps it is better when left/right candidates alternate (driving important changes in their area of interests), than weak candidates elected every time.