Articles listed in order of what I felt was most educational, useful, and enlightening, with most educational at the top:

https://news.ycombinator.com/item?id=17493303

https://news.ycombinator.com/item?id=15356760

https://news.ycombinator.com/item?id=12885356

edit: Interesting, the most useful article for me is also the newest. I guess I'd been dissatisfied with articles I found for a long time. :)