#1 Growly

James' Growlithe Growly was with him since childhood, his precious pet that is implied to be the only source of protection he has against his psychotic dominatrix fiancee Jessibell since his social climbing parents turn a blind eye to how much he fears and loathes her. It's also noteworthy that James, a criminal, grew up with a Pokemon used by law enforcers as a pet. If it weren't for Jessibell, James probably never would have run away from home to begin with, so that's why Growly deserves the #1 spot.