i love it, too, but not as much as my sister (and, i believe, you :) ) i think i have that relation to the little match girl. i could read it 1000x and i'll cry 1000x. same goes for watching any adaptation.
about this: http://mubi.com/films/the-little-mermaid--3 i'm not amazed by it, but i thought it has some really interesting animated parts. but again, maybe you'll like it more since you love the story :)