What makes a pokemon objectively "the best"? Although it pains me to say it, I think the most important factor is Popularity. Being a Necrozmafag myself, I must admit what matters the most when creating a pokemon design is making sure most people will like it, so either make it look cute or cool or both, without it having to make you cringe at its sight, like Bruxish, Stonejourner, Aromatisse, Druddigon, or any nu-pokemon that looks garbage enough to make you say "oh, look, a turnermon". Pic related is a good example of a nice looking pokemon, that is popular and liked by many