I'm surprised R is on there but ggplot2 isn't. R is great for working with data, ggplot2 is great for actually visualizing that data. I believe Wickham is considering redesigning ggplot2 to use D3 to enable interactive visualizations.
can you please show me a repository of R graphs that look half as polished/nice as graphs made in d3? I am not challenging or being confrontational I am actually curious why you think ggplot2 produces great vizes. I am new to data visualization, but I've worked in bit in R before and understand it's power to handle large data sets. Do you mean that they are great as in they are very functional for producing basic static charts like in Tableau? Or dynamic/creative vizes too?
In my line of work, clients are more concerned about "out-vizzing" the competition by creating mind-blowing "Wow!" vizes. Doesn't this rule ggplot2 out for the most part?
ggplot & R aren't really for "out-vizzing" anyone.
While d3 is a great tool for analysis as well, it's more for presentation than exploration, I think.
R and ggplot2 are for exploration & analysis, with the added benefit that ggplot2 makes wonderful plots fit for publication. They're quite beautiful, and well done, but not creating interactive, shiny visualizations.