Conan's lovechild - Crush your enemies, see them driven before you, and hear the lamentation of the women.
So that would be what specifically? I'd love to see an achivement called this, but would that be like 'conquer a city?"
Anyways, I still have the same list of what I want to be achievements as always:
Spelunker: Visit every cave
Dragonslayer: Kill 50 Dragons
Power-Mad: Reach level 100
Adventurer: Find every location
The weapon-master achivements: Fill out a perk tree for a particular type of weapon. One each for maces, swords, etc.
Sorceror: Get three magic skills to 100.
Living Shadow: Get three stealth skills to 100
Juggernaut: Get three combat skills to 100.
Stuff along those lines, things that aren't guaranteed to happen just by doing the main quest. Make us work for our gamerscore.
And I never did understand achievement haters. A system that removes nothing from the game in general but, when done right, encourages people to do things they wouldn't normally have done, and aren't necessary to even look at if you don't like them.
EDIT: Actually, that's not true. I'm pretty sure I know exactly why people bash achievements. I'm also pretty sure it's filed under "stuff we don't talk about." But I'm gonna request that if all you have to say is "achivements svck I hope they remove them" then you may as well just not post. Whining about it here isn't suddenly gonna make Microsoft remove a major feature of their console and it doesn't really even add to the discussion at hand.