>>29234345For me personally, it's just what I like and don't. Pure pone is great, some >nohooves is too. But anthro... it's like uncanny valley. My mind just starts going "nope, those parts do not go together. Creepy as fuck, nooope." I'd almost say it's an instinctual response.
And yes, it's odd considering that the FiM ponies are pretty heavily anthropomorphous even in the show. Don't ask me why, I don't fully understand it myself.