OK, so we're really going to do this thing with the skill gang wars? Alrighty then...
Animal Kinship ROCKS way harder than any other skill tree branch, and these are just a tiny fraction of the reasons why:
Sure, you can get useful and profitable stuff from banging on some rocks, throwing some food ingredients together to make slightly more complicated food items, or watching some plants grow (*yawn*), but the best rewards come from animals! Where else can you find the most enthusiastic responses to your gentle touch than from a sentient being? And certainly no one can disagree that there is nothing cuter than a baby piggy...
Animal Kinship enthusiasts, UNITE, and TESTIFY!