The other way to look at the situation is that the admissions folks are looking for a very specific essay. That essay requires you to identify yourself with a character from some postmodern South American novel (or possibly Elie Wiesel in "Night") and certainly has no place in it for fan fiction.
Nope. Admissions folks are looking to be entertained.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
If continuing the discussion becomes impractical, that means you win at open threads; a celebratory top-level post on the topic is traditional.