Everyone seems to like achievements, but once you get your achievement you are done. High scores can go on indefinitely. Faster time, more kills, people saved, complex scores like skill minus damage.
But hey this is not an achievement vs High Score debate like every one seems to be posting. This topic is High Score only. Besides you can have high scores and achievements in a game. Right So why are you pushing achievements?
Christ, calm down, you wanted people's opinions, you're getting them, don't have a heart attack about it.