Stonetop
Read this and it seems true.
I think the biggest differences in "vibe" between Stonetop and BTW are:
1) In BTW, you're all young adults, just starting out, and the game is metaphor for growing up (at least, I think it is).
In Stonetop, you certainly can be a young adult, but you can also be an old, established pillar of the community.
The game is more about the community itself, and how the PCs fit into it, protect it, build it up.
2) In BTW, character creation and your starting adventure pack shape the village pretty much from nothing.
Stonetop has a much more baked-in starting point.
3) BTW tends to put the starting village in context of a larger kingdom or civilization.
Stonetop is much more on the edge of nowhere, isolated, etc.
4) The baked in elements of the Stonetop world tend to be... grimmer?
The magic especially has a certain sort of bloody, powers-that-you-probably-shouldn't-mess-with vibe.
I don't generally get that from BTW, though it certainly can be there.