Every beta read of everything I write ever: “I expected the characters would have more feelings…”
Me: *grumblingly adds feelings to the manuscript because squishy humans think they’re so important*
Topic of discussion in my house — which My Little Ponies would be good beta readers?
My conclusion — Twilight, Fluttershy, & Rarity would be helpful; Apple Jack, Rainbow Dash, & Pinkie Pie would not.
Princess Celestia would be great, if you could get her. She’s probably a busy editor.
Regarding Apple Jack: I think she’d either like it or not like it, and not have a lot of useful thoughts as to why when it comes to an artistic (as opposed to practical) work.