personally, after playing fable 2 I tried fable, and thought fable 2 wasn't what fable wanted to be, i thought it was basically a rehash, completely.
Same everything, marginal changes, better graphics, ever so slightly slicker interface though not hugely. Same jokes, same story(more or less) same twists in the story, same damn place, same characters by and large with different names.
Playing them in reverse order made me believe Fable was mostly crap, dull and boring while would surely have simply been the opposite opinion if I'd played them in the right order, I'd just think the same about Fable 2 instead.
It really feels like they didn't bother with an ounce of creativity in the 2nd game, they just did the bare minimum to change it from the first game so it wouldn't actually be a flat out remake.