TV series I have never seen, have no opinion on.
Manga is great but unfinished in Viz's release. I have no idea if the Internet can provide the stuff that Viz never ended up translating.
The movies are IMO the strongest part of the franchise. Even the dubs are strong as hell, and I still enjoy watching them to this day.
Maybe it's just sentimentality, but they are among the elite few anime films that have actually spoken to me on an emotional level rather than a "wow, that's stupid and/or cool" level.
If you have not watched the movies, please do so immediately.