Hard to say. Jolteon most of all, but I'm pretty attached to...
Smeargle, Spinda, Vaporeon, Gengar, Spiritomb, Minun, Plusle, Pikachu, Raichu, Farfetch'd, Lapras, Ampharos, Totodile, Feraligatr, Turtwig, Torterra, Typhlosion, Blaziken, Wartortle, and Absol.
I really like Pokemon. c: