To add my own thoughts on Jesus Christ Superstar.
I think I saw the movie first, later owned a cassette of the original concept album (which, IIRC, I got as a Easter gift). Listened that poor cassette to death. I still consider JCS one of Lloyd-Webber's and Rice's best works, in spite of all that both men have done since.
It takes a familiar story, that of Jesus' last week, and delves more into the humanity of it than a more "faithful" version might have done. And that's why I don't mind them stopping at the Crucifixion. It was never intended to be some kind of triumphalist Christian showpiece, but as an exploration of a man wrestling with an extraordinary calling. IOW, JCS is not about the Saviour Christ, but about a very human Jesus (which, I suspect, is what
@Jae is objecting to). It shows him wrestling with his mission and purpose while others react to him and that mission in various ways around him (Judas urging a more militant approach, Mary struggling between loving him as a man and loving him as a "God", Herod and the temple leaders opposing and plotting against him). Its strength is precisely in its lack of the supernatural elements of the story, in its focus on a human wrestling with being, or being seen as, God.
I also think it is really the only one of the Lloyd-Webber musicals that truly qualifies as a "rock opera" in a pure sense. It is "rock" both in sound and in approach, at least when done right (e.g. Jewison's movie). It is "opera" in that it tells a powerful, dramatic story in very broad brushstrokes entirely through singing.
And Rice's lyrics have some bite to them, unlike some of Lloyd-Webber's later collaborators like Don Black. "Superstar" may sound triumphalist but read what Judas is actually singing in the verses and its rather biting and cynical. "What's the Buzz" is another. And, yet, that cynicism is always in the hands of those around Jesus, those seeking to use or oppose him. Jesus himself is what you'd expect, a sincere, faithful, prophetic voice, even if he is clearly wrestling with his mission and the destiny before him. And the best songs, pieces like "I Don't Know How to Love Him" and "Gethsemane", are powerfully emotional and quite the opposite of cynical both lyrically and musically.
All IMHO, but it is my reaction to it after many years of listening to, and enjoying it.