Hello, thanks a lot for investigating this topic! I always wanted a more complex method for the evaluation of cryptocurrencies!
Unfortunately I miss Burstcoin (www.burst-coin.org), as it meets both criteria for inclusion:
A) It is among the 350 first mentioned currencies on Coinmarketcap.
B) It is clearly a means of payment. “Burst is an open-source decentralized platform that connects people, companies, and financial institutions. It allows you to move value – according to your own rules – within a scalable, green and customizable ledger.”)
There are a lot of technical and usability highlights to explore, but by using proof of capacity (PoC) the energy-efficiency is outstanding for a decentralized currency.
In case you repeat this study, please consider including Burstcoin.