What's the Most Important Aspect of an RPG?

[Freepaperclips]

Storyline. No doubt. I've started a lot of games, but the ones I finish are the ones with a great story. Morrowwind was a great game, but I stopped halfway through. Unreal wasn't bad, but I just couldn't get going. Fallout, though, was the first game I finished. Planescape is still on my harddrive and let's face it, there was no better gaming momment then making Annah catch fire in front of her guardian B).

If you look back at the really great games, the storylines are what made them that way.