Maybe we are used to the old pokemon. Also, they made 101 pokemon, and keep adding 100 more everytime, do you think that may have something to do with creativity?
Anyways, I believe Yellow, Gold, and Silver were awesome. I like Red and Blue, but my Pidgeotto was ugly! Now in Y, G/S; I really liked how they looked great. Sadly, I always keep erasing the game, because after getting the 16 badges, and beating the pokemon league, there isn't much else to do, at all. The replay is great, but its always hard to beat the pokemon league, its as if I under trained them, and have to fill in the gap right then and there.
I haven't played the new pokemon games, though, since I don't have a DS. I wish I could, though. I would also want to learn as much as I can about it to battle good players and become good myself. :3