My least favorites by far are Beauty & The Beast and Maleficent ... But I think that Maleficent is the winner for my #1 worst.
Maleficent is my favorite Disney villain. She's a fabulous evil bitch in the original movie, and that's how she should be. I don't want her to be a "woman scorned turned hero". Fuck that! The movie could have been awesome with Angelina Jolie as the lead character, but they threw that potential in the garbage, unfortunately.
I also hated how the movie treated the three fairies. With Disney wanting to be all feminist and progressive these days, they should have realized that the fairies are actually THE heroes of the original movie. In the Maleficent movie, they not only make them annoying ... But they made them completely inept and idiotic. It was insulting to see that nonsense on screen.
With Beauty & The Beast, my hatred for the remake stems a lot from my love for the original movie. Maleficent was hot garbage ... But at least it was hot garbage that tried to do something different? The Beauty & The Beast Remake was one of the most cynical cash grabs I've seen from Disney thus far. They just gobbled up the original movie and vomited it out, added unnecessary bullshit to it, and somehow made a billion fucking dollars from it (which will encourage Disney to keep doing that trend with other classics ...).
The only redeeming aspect of the Beauty & The Beast remake is the beautiful "Evermore" song, but the version that's in the movie is terrible (because of the robot voice the Beast has throughout the movie). The Josh Groban version is the version to listen to, in my opinion.
In fact, if they could just get Robby Benson (the voice of The Beast in the original movie) to do a cover for it, I'd consider forgiving the remake altogether. Haha.