I decided to look at Moritz Stefaner because he created one of my favorite data visualizations, Selfie City. While surfing his website I found to OECD index visualizationCountries represented by their wellness components.
THIS IS SUCH A GOOD DATA VIZ. The link to it is here: http://www.oecdbetterlifeindex.org/#/11111111111
It uses a flower. Flowers are pretty and aesthetically pleasing but also simple enough of a shape to still be legible. Additionally each petal represents a different factor in wellness for a country. Not to mention it is interactive and customizable. People are much more engaged when they can see how the data relates to them personally. I think that might be one key insight that will stick with me through my data viz pursuits.