Walked charmander 174km to get a charizard but that's nothing compared to my chansey/blissey that I've had as a buddy for a whopping 369 km
Currently walking togepi...not sure why. I have every Pokémon I can conceivably get right now (except regionals and unown). I need a stronger togetic to prepare for togekiss probably over a year from now lol
I was going to walk a legendary, but 20km per candy seems like a bit much and to be honest, I'm not sure they're useful enough to warrant a candy/dust investment to power them up. I've already powered up my best lugia and have almost 200 rare candies I'm saving for...not sure, but something.