So adorable! I prefer Chimchar from any of the DPP starters, but it's hard to make him look cute, believe me I've tried. XD But, Piplup is a close second, because it's so adorable, and it's final evo. is pretty strong.
(not one to judge by Pokemons' looks, but I didn't get Chespin because of Quilladin and Chesnaught and not Froakie, because of Greninja, and I have no clever nickname for it. And I thought Tepig was weird.)