All they sprites in these games look really good, there are none I can truly single out now I have looked at all the sprites, however, there is one sprite that bugs me, Pikachu, why do they have to portray it as cutesy all the time?
Yet nowadays, it's now a formidable Pokemon, when it has a Light Ball attached.
For god sakes, Nintendo need to rethink Pikachu now, they have almost drived it off a cliff forcing it to take suicide. We need a tough Pikachu sprite, not something that looks like it wants to play with a bunch of Clefairy and Jigglypuff in a field.
Platinum has had the best sprite so far in my opinion for Pikachu.