Fable 2 doesn't beat Fable 1 on the PC, but it adds some interesting new features that could go a long way
The Final Boss is a joke, he just falls to his death, and you win. It's too easy to make money, and the legendary weapons aren't anything to be super amazed at. Money is too easy to make via owning property, but there really isn't anything you need to buy aside from food and pots, everything else if found along the way -- this is reinforced even more by the fact that there is no armor in the game, there's clothing that's only for looks, but no armor.
They do a good job tying all your work throughout the game togethor at the end, but they DESPERATELY need a downloadable expansion back or add-on pack...like...ASAP. The game ends with a lot of open ends and questions, with a minor cliffhanger. Why is the Spire under Theresa's control? Is she related to your sister in the first game? IS she your sister from the first game?! Did the final boss actually die from his fall? Etc etc...
Guns are a great addition to replace bows, to show the advancement of time, and are fun to use. The legendary weapons are limited here, as you can only have a shotgun-equivalent of a handgun. No rifles (that I know of yet). The Dog is a great addition, just make sure you find all the buried treasure before you go do all the story, cause ***BIG SPOILER*** you don't get him forever =,(
Jobs are a good idea, but end up failing. They are really boring and annoying, and all the main jobs (Blacksmith, bar tending, and woodcutting) are "worked/played" doing the exact same process. You can make much more money in real-estate than jobs. My sum up? Fable 1 + Expansion on PC beats Fable 2, hands down. If you were iffy about Fable 1, then Fable 2 prolly' isn't for you. Wait until there's a downloadable expansion (or two) then pick it up.