That’s fine. I personally can’t choose a least favorite of the Mane 6. Yeah all of them have their moments where they’re not the brightest of the bunch. But…

Twilight will always be my favorite even if she makes some rather dumb decisions like in It’s About Time from time-to-time. Because there’s episodes like Lesson Zero & Magic Duel that while the former may not be the best example of Twilight in the series managed to provide entertainment. While the latter episode had Twilight use her wits to win in the end.

I’ll always like Applejack despite her being so stubborn in Applebuck Season & The Last Round-Up. She’s supportive in many episodes where she’s not the star like Sisterhooves Social.

I’ll always like Rainbow Dash despite sometimes being a jerkass or an egomaniac in Boast Busters or Mysterious Mare-Do-Well. Because she learned to be much better in episodes like Hurricane Fluttershy and Wonderbolt Academy.

I’ll always like Rarity despite sometimes not coming off as generous as she could be. Because there’s also plenty where she does show her generous side like in Suited for Success and Rarity Takes Manehatten.

I’ll always like Fluttershy despite her sudden outburst in Putting Your Hoof Down that made her discorded self in Return of Harmony look like a saint in comparison. Because Hurricane Fluttershy alone got Fluttershy out of that hole.

And I’ll always like Pinkie Pie despite her behavor in Filli Vanilli because there’s episodes where Pinkie has been better. Like just two episodes ago in Pinkie Pride.