Quality of linking root domains. Here is where we get to the quality of each site’s LRDs. Using the same LRD data you exported from either Moz’s OSE or Ahrefs, you can bucket each brand’s LRDs by domain authority and count the total LRDs by DA. Log these into this third sheet, and you’ll have a graph that illustrates their overall LRD quality (and will help you grade each domain).

This is a great list! I especially appreciate the sample set of pages you recommended - oftentimes we ask clients we're onboarding who they consider to be their competitors, but once we start digging into their sites we see they're not necessarily "search" competitors or the sites just aren't that similar to be regarded as such in the search engine's eyes. At least these pages can help weed out any sites that just aren't built out to be similar to a client or are way ahead, so you can get an accurate comparison!
Truly awesome stuff Zee! For those involved in doing competitive analysis for Local SEO, I would also add GMB Completion/Optimization, and NAP Profile Quantitiy/Quality (which can be checked via MozLocal and Majestic SEO). The conversion part of your analysis that you laid out is especially important in my opinion. Thank you for writing and sharing your insight!
Now the ad servers don’t create this table themselves, they license it from another ‎company like MaxMind or DigitalEnvoy, whose primary business is geolocation ‎data.   This is no enviable task; IP addresses themselves don’t necessarily have an ‎obvious pattern in the way they are assigned like a telephone area code would.  It’s ‎a bit like solving a mystery, and the geolocation companies use a variety of ‎methods to approach the problem.  ‎ /injects>