You need to understand how the rating is given before trust it or not. Some ratings site just use a check list to see whether certain items like telegram group, whitepaper exist or not. These are far less useful then sites that actually trying to understand what the project and potential is, such as crushcrypto and in some case even some youtuber are better. But it's best using ratings as reference, some youtuber could be ranking the coins as the best ICO because they already negotiated presale discount and invested a lot of money in it. End of day we make our own decisions. Personal opinions not financial advice