Don't trust the ICO ranking entirely. Because they are not the one who determines whether a project is good or not. It is only limited to numbers and benchmarks, the rest is in your hands and you also determine that the project is good with your own analysis.
I do not see any point in relying in them, anyone you should know that those sites are set up to make money and not a free site as they claim, for you to get rated, you have to pay for it secretly which they will never announce, and some of these fees paid are what they use to buy reviews by paying people.
Sometime when I check on those sites, the reason why I just go there is to pick some of the top rated coins according to them, and then go do extra research for me to determine if those projects are really worth it or not, at least, it would be unfair for me to completely condemn those project because they paid for them to be listed, it is still part of their promotions and they have to do everything possible to attract investors to them, so I don’t condemn them but investigate them the more.