Fallout > Oblivion.
Fallout/Oblivion style RPGs are pretty badass, but the general JRPG genre, so stuff like Final Fantasy, Eternal Sonata, etc. just isn't my thing. Real Time Strategy is the only type of strategy game I tend to play much, unless you count Star Wars Battlefront as a strategy game.
Overall though, the sheer weight of Fallout, Oblivion, etc. wins it for RPG.
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