I think Frozen would still win. 1) It's a "princess" movie and that's what folks seem to expect and want out of Disney more than anything else, and it's what the company seems to do best. 2) It's a 'sister' thing that just resonates with tween girls and even older ones. Disney owns that demographic and thusly gets their parents too. 3) "Let it Go" tops any one song in Lion King for ear-worminess. 4) I never envisioned that Lion King would be a Broadway musical. Frozen is a gimmee as a huge Broadway hit that'll be around for a long time.
You have to be kidding on #3.
While
Frozen is good, and some songs are nice, "Let it Go" is debatable to some. First, although it is popular and even good, it is hard to say that it is better than "The Circle of Life," especially in context of the opening sequence of
The Lion King. That scene is beautiful and amazing on a big screen.
And "I Just Can't Wait to Be King" is really fun. (And maybe similarly to "In Summer.") I also noted a while back that
Frozen's "Do You Want to Build a Snowman?" in some ways is equivalent to "Hakuna Mutata" from
The Lion King in that it was a musical sequence that served the purpose of letting the characters grow up.
Remember that the re-release of
The Lion King in 3-D recently was the number one movie for several weeks, even though it was old and already in most people's homes.
But, to me,
The Lion King wins overall because it has a great story with heart, and is beautifully drawn.
Frozen brought Disney back to these roots, and is also beautifully animated (in a way that looks like more like hand-drawn than most, by the way, even though it was computer animation).
Lion King edges it out.
And, as for Broadway, one thing that made
The Lion King soar on Broadway was exactly because it is breathtaking and unexpected in its exposition. The fact that
Frozen already lends itself to the stage is not necessarily meaning that it will be breathtaking there, just natural.
The Lion King was breathtaking on Broadway in part because of the innovative puppetry and new, unexpected approaches to staging.