It is hard to tell which ICO projecta is the best. Market is always unpredictable. Even the leading bitcoin loses its value. But there are a few things you can do to select the best ICO  for you. You can search the net for backgrounds and comments about them. Try looking ICO lists and scan through them. Make sure that the project had shown good market exchanges currently if it is their second time around. Watch more news or  articles on the net about the project. Search the admins and look for info's about them. Maybe this will help you.