Which one do i best buddy first?

Murkrow- my favorite pokemon, + kostek was my first ever murkrow and its also my best murkrow if it comes to iv's,

Ponyta- i need ponyta candies so i can evolve her into rapidash + its my first ever hundo,

Gyarados- my second favorite pokemon, also i think its just overall a decent pokemon if it comes to like defeating grunts which is the main thing i do in this game,

Mespirit- probably my rarest pokemon so i just want to best buddy her.