I would train to become a Pokemon doctor or Pokémon Connoisseur - I'm inspired by Cilan. I would be perfectly at home in Unova. My home town would be in Undella Town, and get a chance to ride across the Marine Tube anytime to visit Humialu City.
At the start of the journey, I would start off with Oshawott, and slowly raise it to Dewott, as a gift, I'll give it a everstone. Along the way I would love to catch, or befriend a Patrat, Purrloin, Emolga, and hopefully Mienfoo. They are some of my top 10 favorite Pokemon.
As for evolving, I think best to let the Pokemon decide.