I understand many like the summary of everything so I understand why many value ico rating sites. My personal preference? I honestly prefer my own diggin; I really do not trust much of the ICO rating websites. I think 47bank's whitepaper is simple enough to understand and assess. It is always easier asking the team for vague or unclear points. The whitepaper is well organized; simple to understand, read and well designed. the best part is it is not a "too long to read".