Also a 2013 HSC student, ranked first in both Advanced and Extension 1. I refused to do Extension 2 as I am quite lazy and saw no interest in it during year 11. I also did Crime for Ext and I LOVED IT. It was engaging and catered for my analytic lens. Although Crime at first glance may seem like a dull and outdated, traditional elective, it is actually quite the opposite; it is dynamic and has an enduring relevance to societal functions. You will be exposed to a variety of crime-texts and sub-texts, from the traditional of Poe and Doyle, to the cosy genre of Christie, the noir/hard-boiled, golden ages and finally to the modern or contemporary. It is through studying a variety of texts that you will see how the genre evolves in response to its context and unlike Advanced where you question "how", in Extension you will question "why". Why has the composer constructed this text in this way? What was his purpose? The answers are complex and in most cases, of the utmost brilliance. Specifically, I loved Michael Ondaatje's novel Anil's Ghost as it perfectly captured the corruption of the government and how in essence, the government is arguably the worst criminal.
Sorry for the long response! If it wasn't obvious, I plan to be an English teacher haha. One piece of advice: It is never too early to start writing, or reading in search for the perfect related text.