my favorite so far would have to be Magic Duel, star wars shout outs, Trixie's long-awaited return, finally knowing how to pronounce "alicorn". yeah, that ep had it all.
least favorite so far has to be "One Bad Apple"
I don't really know why, but I feel like the quality of the story suffered in some way from their execution of the moral, not that it wasn't an important moral to have, but it just didn't seem up to their usual standard.