When i search i found ICO projects with very good rating, this rating posted buy ICO rating websites, how this rating works, websites did not mention about the factors use to rate this projects.
There are so many ICO projects but there are also a lot of ICO rating websites out there. Most of them are manipulated or "paid" by the owners of the ICO to have good publicity. Instead of looking at those websites, I personally look at the exchange instead and look at the graph of the changes in the price of the ICO. I trust the quantitative stats of the project rather than the qualitative reviews.