Bioshock vs. Fallout 3

Bioshock for me personally because of how cerebral it is.

Bioshock for me. Both have crappy RPG elements, but at least Bioshock had better combat, a competent story, and an interesting setting. The gameplay of  Fallout 3 consisted of hitting RB for V.A.T.S, aim for head, A A A A A A A A A, fire! And repeat. And repeat.

I had to go with Fallout 3. Mainly cause I have never played Bioshock.

I loved everything about Bioshock and I had trouble getting into Fallout 3...so BIOSHOCK