It’s a bit awkward because New Horizons (Switch) is not very different from NL except it started very rough and unfinished. It removed a lot of things from NL (especially furniture customization options, which is still a shame), and at launch there was very little to do.

Nowadays though, following several updates, it’s great. There’s still a bit of nostalgia for great stuff in NL (better Isabelle, funnier dialogues, more furniture sets and customization, and a few special villagers and cool mini-games).

But the missing NPCs/events were progressively added, exterior furniture is a huge pro, and especially the big update along the Happy Home Paradise DLC added a ton of new items. And there’s a new update coming soon (probably the last one, and after a very long time wothout anything, but it was a bit unexpected).