I'm willing to bet most of you have never considered the question. I know I hadn't until I read the article on SFGate.com. According to the article, the concept "measures the digital footprint of 64 brands via 350 data points across four dimensions: Site, Digital Marketing, Social Media, and Mobile."
Three brands, Macy's, Victoria's Secret and Nordstrom, achieved Genius level, but some of the more interesting findings include:
You can download the entire report here for free. It is gated, so you'll have to give up a bit of information, but the tradeoff is well worth it.