I remember The Witches and Hocus Pocus very fondly, and I would watch the Pokemon movies on repeat. But my favourite film from my childhood is probably The Brave Little Toaster. I suppose it's a little too old to have been seen by most here, but if you ever get the chance I really recommend it. I watched it again a couple of years ago, and they just don't make them like they used to. Some scenes are so traumatic, and the songs are well written, purposeful and tremendously expressive.
I can't imagine a children's film would contain a scene like this anymore.
https://www.youtube.com/watch?v=YEdZh8a4ZvE