[DoritoChef]

I think the best takeaways from the SO survey come from year-over-year analyses. You can watch JS explode in popularity over time, and see how quickly languages and libraries get adopted.

It would also be really nice if the "popularity" metrics that OP mentions (i.e. preferred language, least preferred language, language most used at work, etc.) could easily be grouped by "Developer Type". After some quick googling, it has become apparent that the data from previous years is available to download, but it would be nice for SO to show that data in the blog post.