This is definitely a personal preference, I think I'd be bored just tweaking something generated by an AI or anyone else, to me a long term construction of something from the ground up sounds much more fun.

I've built a couple replicas of IRL buildings in survival over the years, for an hour or two after work, and found it very relaxing. It did take a lot of repetitive clicking, but the result was (almost) always worth it. And all the things like planning, finding the right place on the map and gathering the materials building materials made it feel like an actual construction, which I enjoyed.