Tara

At first I was okay with it, especially because I didn't expect for her to immediately be a princess in the process. But that finale episode was just so... awful. All of their personalities seemed fake, I disliked the songs (and it didn't help that they were CONSTANT), the concept of the mane six swapping their cutie marks is a cool idea but it was done very poorly, and my biggest complaint is that the entire episode was very, very rushed.