Pokemon White 2 is almost certainly my ideal Pokemon game. Aesthetically it's my favorite; I think the pixel art and spritework is at its peak here, with the music being great as well. The variety of pokemon is a lot of fun too, a nice contrast to what BW did -- I understand why they kept to only the new pokemon in Black & White, I think that was a smart move, but team building in White 2 gives me a lot more joy. Progressing through the map in a different way from BW was also a super neat detail, along with the ways the region changed. Pokemon already has such a solid foundation, and I think the BW2 games provide the most polished experience using that framework while minimizing the annoying parts of the series that are traditionally present in every game.