Here he is. Zangoose was my first favorite ever. When I finally purified the one in Pokemon XD: Gale of Darkness, Marth and I proceeded to be the best bro-friends ever. Definitely my #1 favorite.
Keldeo, Typhlosion, Charizard, Flygon, Gallade, Umbreon, Serperior, Dewott, Froakie, Mismagius, and Sceptile and Riolu are the rest of my favorites.