Earth pony, EZ.
People shit on “mud ponies” because they can’t fart clouds or ejaculate sparks from their headbones. Well, they don’t need to. They’re the strongest, most dextrous and durable ponies, have a natural affinity for art, food, and music as well as nature, and are the fastest on land. I have no desire to be able to fly or cast spells, so there’s no appeal to me.
Alicorn in the human world would always be looking over their shoulder, someone always trying to catch you, ride you, turn your horn into medicine. I’ll pass!