Was Ob's story any good? No. Was FO3's story any good? No.
Did we love both of them to death? Yes.
Whats this we [censored]?
Oblivion was clear to the point and I saw very few flaws same with Morrowind
But I did see a few flaws with Fallout 3 that New Vegas fixed such as:
Better Variety of Weapons and Weapon Mods
Way better story in New Vegas ( Lonesome Road will be "EPIC" in my mind)