The ones I watched, the better ones are the ones who go farther from the Original. Like the new Jungle Book or Maleficent. Not classics, but good on their own terms.
The worst are the ones who are figuratively carbon copies of the original, Beauty and the Beast and Lion King as the worst.
So I would say is the best idea is to just do something different. Do a retelling, recreate, and try something different. Of course, Mulan proves it doesn't always work, but I still prefer a new bad thing than making something good bad out of repetition.