Very nice job, guys. Lots of industry background and analysis of the music—appropriate for a musical. A fair amount of crosstalk and interruption, but it shows your enthusiasm for the film.
This is a movie that I've been meaning to see for a long time because of all the good things I'd heard about it. And I finally watched it with my 7-year-old nephew and had a lot of fun. But I agree with the non-Michael consensus that it's not really a great film.
As you say, Jack doesn't really learn much, and the romantic subplot is kind of halfhearted. You would think that Jack would gain a renewed love of scaring, because he was lamenting losing it at the beginning, but I don't quite get that. Or you would think that Oogie Boogie would have been presented as a problem or nemesis at the beginning, driving Jack to greener pastures, since the conflict with him is what is resolved at the end, but that's not the case either.
Also, I saw The Corpse Bride before this with my 7-year-old niece and had a similar experience: a lot of fun but kind of "small". The story is more coherent, but less grand. I also saw Coraline with my two nieces, 13 and 7, and enjoyed it a lot. It felt grand and had more of a point, altho it was kind of baffling at times.
The kids loved all three movies, of course. None of them really puts a foot wrong.