It seems to me that Rowling was clever and wordly wise (at least the popular lit world) to go the safe route of school story and mystery. Tolkien's open-ended structure still seems unwanted. Even the big fantasy series of the current era seem to follow a safe pattern rather than just go where the story takes the author. Hmmm..... ghosts of a certain
Kalessin rant? What was that called? Ah yes:
Are There Any Valid Criticisms? That was a real tour de force!

Might be worth taking a peek at, those of us who have been around only in the last two years....