Though I actually got bored of Fallout 3 alot quicker than I did Oblivion, even with mods, probably down to the combat being far worst in Fallout 3 than it was in Oblivion, that engine just wasn't made for guns and VATS got boring as hell. My main hopes are that they really have improved the AI alot in Skyrim, I know that they've definitely made alot of things unique where locations are concerned and the also have alot more voice actors so hopefully the world feels alot more diverse. The combat certainly looks better, not amazing, but good enough to keep me happy.