(For the purposes of the ranking, anthropomorphism will be based on anatomy, proportions, mannerisms, roles as well as how much is the human-shape of the mon masked. Primates get their own tier for obvious reasons)
There are 6 categories going from S (fully anthropomorphic) to F (not anthropomorphic), each mon is ordered within their own rank.
S rank – Basically a dude
Cinderace – Soccer player bunny, plantigrade, human proportions, human anatomy in a bunny fursuit, flat faced, wears fur clothes. Doesn't get more human than that.
Incineroar – Heel cat, plantigrade, body of a muscular man, just a guy with a tiger tail and tiger head.
Quaquaval – Long legs, small body, wing arms, human movements, just a gay man in a not-so convincing duck disguise.
Meowscarada – Digitigrade but fully human proportions, defined neck, waist and hips, looks like a woman or Joker from Persona 5.
Inteleon – Extremely slender body, long tail, kind of uncanny for a man, but still, just a man. Also FULLY HUMAN hands, doubly uncanny.
Delphox – Digitigrade, short legs although the fur dress hides those animalistic features, giving it too much of a human shape, would go in A without the dress.
A rank – Basically a dude, with a better cosplay
Blaziken – Strange appearance, masks its human proportions and anatomy quite well, more monster than either man or bird.
Greninja – Similar case to Blaziken, its amphibian features and pose mask its human shape
B rank – Primate
Rillaboom – Being a gorilla, it's de facto anthropomorphic, it having a role humanizes it a little bit more.
Infernape – Monkey King
C rank – Edge of anthropomorphism
Chesnaught – Almost human proportions, very bulky although it's mostly armor, misses A rank by a molecule
Decidueye – Anatomically a bird, but the pose, hood and movements make it pass as a humanoid until you look very carefully (outing the owl)
Sceptile – Upright pose, but digitigrade and stubby legs, bottom heavy
Primarina – Seal, but passes as a mermaid
D rank – Bipedal beast
Emboar – Upright, albeit too bulky and stubby to be confused for a human
Empoleon – Penguins are naturally bipedal, fur clothes can pass as markings
Feraligatr – Bulky bipedal croc, big tail
Charizard – Bipedal dragon, long neck
Blastoise – Basically just a tortoise attempting to walk on two feet
Typholosion – If a real life honey badger stood up
F rank – Beast
Swampert – Can stand on two legs if it wants to
Samurott – Can stand on two legs if it wants to
Serperior – Slithery snake
Skeledirge – Croc that pays rent
Meganium – Dino lady
Venusaur – Dino frog
Torterra – Dino tortoise
by Luxio512