Nothing like coming to a conversation more than six months late... 
Reading through this thread tonight has really made me rethink my books. I've been into fantasy for years (and also Star Trek for part of it), ever since I read The Hobbit in high school English class my junior year.
In addition to Tolkien and Harry Potter, I also have two multiple-books series - by Robert Jordan and Mercedes Lackey. Both involve magic of the "genetic" sort. The Jordan books are filled with rather mild sexual innuendo, and the Lackey books have several with a homosexual (portrayed very sympathetically) as the hero. The Jordan books have a young man as the "hero" that has the same overtones of Christ that Potter does (even down to "prophecies" that he will break the people before saving them). I have several other fantasy series that have more or less the same sort of thing.
Five or so years ago I pitched the trashy "bodice-ribber" women's romance novels (soft core porn really). I thought the fantasy was "harmless" - definitely not. I want to have children someday (after I find a husband, first of all) and I would definitely NOT want them to read this stuff. Potter has some very scary parts, as do the others.
Just my two cents...
Off to weed out my books (I would ordinarily give them to the library or sell them on Amazon, but I'm just going to pitch these, I believe.)
Theodora Elizabeth