Do you know if there are any conversions of Sims 3 worlds to Sims 2 neighborhoods? Some of them have very interesting storylines and families, but the Sims 3 gameplay just doesn't work for me.

Just one (and a subhood) that I'm aware of. The main one is Sunset Valley, naturally. It's right over here. There's a few QOL mods that are recommended, but it's completely CC free.

The same blog also has the Sims University, which is the only subhood in the Sims 3, if I recall correctly. So there's that, if you count a university campus. It does have a CC pool to download, so hopefully that doesn't bother you.

If there are others, I haven't seen them. Sims 1 & 4 have a few remakes out there, but not so much for 3. It's probably too much effort for most creators. Can't say I blame them.

Thanks! That looks pretty nice! Pity there aren't any more, I'd love some of the weirder ones.

Here's Roaring Heights

Im working on Twinbrook, my own Roaring Heights (but the above one looks better), and Riverview.