Good story, good amount of content for the casual gamer, bad ass spells and graphics. Lots of glitches if you wanna get rich, and leveled up quick (your a cheater)
Much more in depth. Very open world feeling, but with a lack of direction sometimes. Game can be beaten in like 5 hours. Or you can wander around for 100+ depending on your gameplay style.
I played both, but I put fallout down to finish fable. I already played oblivion, and despite the fact that it was guns instead of spells and swords. Fallout felt ALOT like oblivoin. I had that "ive done all this before" feeling.
I say fable if your casual, fallout if you really wanna sink into something.
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