to me I've always seen the exotic types as Ghost,Dragon,Dark,Steel,ice and now fairy. With these being the types most restricted usually in availability as well as the types that are given pseudo legendary status.
to pick a favorite I would have to go with Dragon as these Pokemon tend to look cool and have good stats and versatile move pools
Dragon, Dark, and Fighting are my favorite types already. My favorite pokemon are Darkrai, Garchomp, and Infernape. Unfortunately, they all just became weak to fairies(except Infernape). --- KI:U name: SlashZX FC: 0216-0883-7959