I like Fallout New Vegas better because of all the quests, weapons,ammo and faction gear. I like Fallout 3 better because of the real Fallout feel after all fallout does mean: Fallout is the residual radiation hazard from a nuclear explosion, so called because it "falls out" of the atmosphere after the explosion. It commonly refers to the radioactive dust created when a nuclear weapon explodes. This radioactive dust, consisting of hot particles, is a kind of radioactive contamination. It can lead to the contamination of ground and the animal food chain. Which I don't see in the wonderful Animal and plant growing Vegas, Not to mention the strip. But I still like NV better.