I previously considered this question and came up with a suggested reading order with my favorite hundred. It does mix the issues of writing quality and subject importance together, though.
BTW, your list is what's being used as the initial source for the 'Featured Articles' on the front page.
However useful the content, what are some examples of the best nonfiction writing on Less Wrong? Are there pieces you think are as good as recent classics of essay form like I Think You're Fat or Lies We Tell Kids? For example, I like Yvain's The Apologist and the Revolutionary.
Which pieces would you nominate as some of the best nonfiction writing on Less Wrong?