Skyrim's editor was super intuitive and crashed very little for me, just like the Oblivion editor...
However, they never allowed innovative mods, especially the oblivion one.
EDIT: on a different note, I hope Asset import/export is simplified for BG3, if it is going to feature modding at all. Couldn't get a single 3d thing in DOS2.
I'm curious about what you thought was lacking? Not that I'm saying it wasn't, just interested. Your "different note" suggests where you're coming from as I probably spent way more time using third-party tools to do 3D editing than I did in Construction Set; and even when it came to integrating them into the game I'd use TES4Edit as it didn't make a mess of my dependencies!
But for world-building and scripting there was no other choice.
My gripe with the Creation Kit was that ultimately it all boiled down to Actor Values (skills, elements, resistances) - which were hardcoded. So my first mod, the School of Magic of Darkness, never worked because of that. So, want to create a new element? nope. Want to create a new skill tree? Nope, not without overwriting others. All existing ones are replacers, workarounds are ok but still. Plenty of room for worldbuilding and adventures, however.
FYI Larian promised not to do this in DOS2 and yet they did all the same. So I also kind of lost interest with that.
