Before defeating the Pokémon league, Squirtle was actually the only Pokémon that I was focused on training. My entire team depended on this Pokémon, haha. When I was done with the league, I finally started to train my other Pokémon. The one that I absolutely loved training was Dratini. When I was able make it evolve into a Dragonite, I felt quite proud of myself. I also liked training Ghastly, because it's one of my favorite Pokémon from the Kanto region. =)