Not as good as Oblivion, but that doesn't stop it from being a stand-out game in my opinion. Oblivion seems to me the deeper game with a more convincing game world and smarter interation with NPC's (though admittedly the acting is worse).

In terms of Quests and side-missions, I think that Oblivion has the more intersting missions by far. Graphically, NPC's are a cut above in Fallout 3, however am I alone in believing that the landscape, while savage for a reason, is ratehr dull and colourless in Fallout, in comparison to the lush detailed envirnment in Oblivion.

It's an enjoyable game, no doubt. But I think Bethesda could have done better.