The job: give a client a fair basis for choosing
A comparison sheet exists so a client can make a decision they will still consider reasonable two years later, at claim time. That means presenting the attributes that determine what actually happens in a claim, not only the number that determines what happens to their bank balance next month.
How it is done today
The most common artefact is a screenshot from an aggregator, forwarded on WhatsApp, showing three premiums. It answers one question well and every other question not at all. The client chooses the cheapest column because it is the only dimension the image gave them.
The next version is an Excel sheet the adviser rebuilds per client, typing plan details from memory or from a brochure. It is much better, and it decays: an attribute typed wrongly in one client file is never corrected anywhere else, and within a year several versions of the truth are circulating.