Mine is Pokemon HGSS (the amount of content is mindboggling), Pokemon Platinum (grandest Pokemon experience) and Pokemon Black 2/White 2 (most fun and unique playthrough). I’m also looking forward to buying Legends: Arceus on the Switch, have heard many great things about it!
The Gen 4 games, Pokemon Masters, and Heart Gold/Soul Silver
Gen 4 is such a golden era lol 😂 most Pokemons available and iconic battles too