Most of the Disney Princess sequels are pretty good. Lion King 2, Peter Pan 2 and Lady and the tramp 2 are big fan favorites.
But remember everyone has different taste's. To one person one sequel is horrible, to the other it's amazing. So watch as many as you want and form your own opinions on the sequels.
My favourite sequels are The Return of Jafar, The Rescuers Down Under, The Lion King 2, Aladdin and the King of Thieves and Pooh's Most Grand Adventure and My least favourite sequels are Return to Neverland, Pocahontas 2, The Hunchback of Notre Dame 2, The Jungle Book 2 and Pooh's Heffulump Movie.