Gamers of CFC! I need your help!

I'm trying to get a friend into RPG's and I'm trying to decide the best one for him to try. Ideally it would be a relatively simple one that has a strong plot and gets you interested from the start.
My collection of RPGs include:
Baldurs Gate
Deus Ex
Deus Ex Invisible War
Deus Ex Human Revolution
Dragon Age: Origins
Morrowind
Oblivion
Fallout 3
Fallout New Vegas
Far Cry 2
Mass Effect
Mass Effect 2
Stalker: Shadows of Chernobyl
The Witcher

Of these, I was think about either Fallout 3, Mass Effect 2, or Human Revolutions to introduce him to.
Any opinions?

EDIT: Forgot to make a poll, could a mod add one?