There are three areas where I think R is the clear winner: 1) An IDE for data analysis/programming: RStudio 2) Easy way to turn your analyses into reports: kn

There are three areas where I think R is the clear winner: 1) An IDE for data analysis/programming: RStudio 2) Easy way to turn your analyses into reports: knitr 3) Easy way to turn your analyses into interactive webapps: shiny (I also think R wins on visualisation and data manipulation, but I'm biased ;)