David Robinson has done a great work scraping twitter data to find the most popular packages in R based on the #7FavPackages hashtag.
My personal take: a lot of people don't know what they're missing out with the package data.table, which I would place in top1 in my list.
In short, data.table has extremely simple syntax and unprecedented speed when working with large datasets (it takes me just a few seconds to generate several aggregated columns from a dataset with ~200 million rows).
Most popular #rstats packages in tweetosphere, by @drob https://t.co/NIWPsJyqxD My take: #rdatatable should be top1 pic.twitter.com/cB5kdk2lDg— Urban Demographics (@UrbanDemog) 26 August 2016