I only really played red and blue myself, but we did play the Green rom back before the English version came out. I think we stumbled out way along to the first gym. That’s probably my go to, since back in the day we completely exhausted ourselves playing it.

I watched my partner play Sword. It looked pretty good. She’s playing it again now with our daughter and it seems fun.

I started playing Soul Silver with my daughter on a DS emulator, and it seems good too.

I had Diamond on my DS years ago, but I only remember playing it for about an hour.