A.) a campaign setting with enough adventure in it to cover a years' gaming (like what WOTC is currently offering).
Cripes, I can't decide.
I don't DM anymore, thank goodness, but I'd probably go A. I don't have time to world-build and tweak and modify and and and. Having it all in One Big Book is a boon for the time-strapped DM.
At the same time, those can be really railroady. There's not a lot of scope for the players burning down Daggerford, chucking the plotline and striking out toward Kara-Tur. I don't like to be railroaded as a player, and I hate doing it as a DM. I find that the One Big Book adventures are more like a novel, where only the author really has any input on what can possibly happen. I think RPGs should be more collaborative than that. I don't want just Weis and Hickman's story input to command what happens. I want the input of the folks playing Raistlin, Caramon, Tika, Sturm, etc. to also influence where the story goes. In other words, if they
do burn down Daggerford and decide to go debauch in Baldur's Gate, I need to be able to work that into the story, while still getting them to seek to end the Tyranny of Dragons. Does that make sense?
So I should probably go with
C.) a series of adventures (covering 1-2 months of gaming) that are loosely tied and set within a single setting? 1 product. 1 years worth of gaming like A but not a single overarching plot, more like episodes.
But that's not ideal, either. I don't like just sauntering vaguely from adventure to adventure; I adore the concept of an overarching plot line a bit too much. There's scope in fantasy gaming for sauntering vaguely - after all, did Conan not saunter vaguely toward the throne of Aquilonia? - but I prefer to adventure and DM in plotlines.
Or maybe it's more like a episode-based TV program with a definite story-arc. Like the latter Star Trek series: Archer's Enterprise is a good example of that. Definitely episodic, each of which can (sort of) stand alone as adventures. But they each are a chapter in the story-arc.
Am I making any sense at all?