>>36419239this kind of applies to all sprites since the 3d models look really bland in comparison, but the sprites in gen 2 have a nice charm to them that makes you want to capture pokemon that otherwise wouldn't be that interesting. I notice this a lot when playing gen 2.
Similarly if you play a unova randomizer you'll see a lot of pokemon where you may be familiar with their sprites, but not their animation, and it can be really unique. kinda crazy that they animated 649 pokemon and only put about 150 that you see in the main story in BW. It made bw2 seem a lot cooler though.