This one was a close one for me, but I have to go with my personal fave, even though I dislike his storyline. Wally is amazing, but I wish you saw more of him in Hoenn playthroughs because he disappears completely after Gym 3 until the Pokemon League. I wish you got to see the growth more, because he still is a noob to Pokemon at the Gym 3 encounter. Still absolutely love him though.