Fallout II (Score 1)

Chosen, find Vic in Klamath and go recover the holy GECK. You could basically do whatever you wanted in the meantime in a large, immersive world with lots of colorful distractions. You could run through the whole game as an evil childkiller or slaver if you wanted. ;-) Fallout was a good game in it's own right, but I found fallout II to be a larger and more interesting game overall. As an aside, the worst quests in recent memory were impossible quests in EVE where you have to go fight someone incredibly difficult or do a courier over 25 jumps. All while trying to avoid player and NPC pirates.