Its amazing to see how data visualizations have been pushed from a development standpoint, which helps designers know which cool affects can come at a smaller development effort and not break the bank or timeline.
When decided on the actually graph or chart type, its easy to have 3 or 4 that really fit your data in a good way, but then it becomes more of a cosmetic discussion on what looks better or fits better with where you’re displaying it at. Even stylistically the development Libs or plug-ins make the design more streamlined as they have built in CSS treatments like gradient shading or drop shadows.
A lot of the libraries really focus on the animating of the actual graph pieces which really make any data vis really pop. Even if the end visual seems sort of plain, that first 1-2 seconds when it is animating into its full representation, any client or stakeholder will be wowed with the motion graphic aspect of it.