For me both games were very good. Although they had theyr flaws like Oblivions bad dialogs or FO 3's very small character customization they both were still good games... after adding a few mods. I'd say they are equal because one is a futuritic fps style RPG and the other is a epic old world RPG. Mostly i liked both games because the stealth existed and it was very realisticly challenging. It wasn't "made for 5 year olds" like in thief where stealth was just made so easy that a 5 year old could master it which also made it unreal and for those who think that the stealth didn't exist or was just to difficult... then i'd say stealth gameplay isn't for you.