Super Mario Odyssey - IMO, this is right up there with 64. The game is absolutely packed, biggest in the series, and I love everything they’ve done with new movement techniques.
Splatoon 3 - And 2, but not like there’s any reason to back to S2 now. I’ve never really been into shooters much, Splatoon, Kid Icarus Uprising, and TF2 are the only ones I’ve really liked. But I do love this game because it’s so unlike ordinary shooters.
Metroid Dread - Hits all the same highs as Super, but with significantly better combat and bosses. Yes, I’m saying that makes it better than Super.
Puyo Puyo Champions - Not actually exclusive, but if you want to play this game online, JP players are all on Switch. So functionally, it might as well be exclusive.
Kirby Air Riders - I waited 22 years for this sequel. I bought a Switch 2 just to play this. And it was worth it. I’m actually blown away by how much higher this game raised the bar from the original.
Here’s my whole library if you want to see everything I like. Some notable exclusives: