I've made it through the entire original run this week, and I've got 2 more episodes of End of Evangelion to go before that one is done.
I'm finding myself much preferring the EoE version of the ending - it was nice to see character's plots being tied up visually, and it just kind of....made more sense to me.
I know there's another series of NGE (Rebirth, right?), but I might only watch the parts that expand on the story.
EoE's better (and my favorite anime of all time) but I honestly don't mind 25&26 too much. The content's not the issue for me, more that the episodes are just badly paced, slow and boring, kind of a slog to get through.
Rebuilds are worth watching because they're well-made and entertaining but they're not better than the original. It doesn't have as much of the psychological aspect, it's not full "wow cool robot!" but it's definitely not as deep or interesting as the original. The last movie is by far the best, but the ending itself is kind of bad. And there's a new character that I still don't really understand the purpose of.