Hmmm, tough call between Twilight and Rainbow... Though the only one I don't like is Applejack -- her southern accent drives me nuts.
And unlike most of you: I've actually watched this on syndicated television before

Also, since I won't change my avatar to anything else for a period longer than 3 days, I offer this to whoever wants it: http://i19.photobucket.com/albums/b195/DEFRON/blehlehlehlehlehdt.gif