Many people invest in ICO. And in order to choose ICO it is necessary to analyze a lot of information: idea, whitepeper, team. Read reviews from cryptanalysts and study ratings on various sites on the topic ICO.
In addition to the rating and ideas it is better to look ICO categories.
I conducted statistics on return on investment (ROI) in ETH and $ depending on the type of ICO project

As we see the best projects of ICO companies are Exchange and Blockchain. The most unprofitable companies are Banking and Real Estate.
By the way, the first ICO where I invested was Real Estate. I believed the idea of the project, whitepeper and the experts' opinions. And this investment is in a big loss.
In addition to these categories of ICO, there are others: Artificial intelligence, IOT, VR, Energy, CryptoFund, Hi-Tech, Ticketing etc. But for qualitative statistics these companies were few.
But, please, do your own research before making any investment decisions.
wow this was very helpful in selecting which ICO categories I should involve in. From my experience I knew that real state projects are the least ROI projects and also I believed Blockchain projects were the most profitable and has highest ROIs because many blockchain projects like APH ZIL were holding its demand to a certain level in bearish market also. Other than the concept we need to investigate about viability of project and also mainly the team and advisors.
Anyway thanks a lot for the information again.