Investing in ICO is not profitable anymore, everyone knows it. Sometimes we find a good project, which can give us a very good profit, but that type of ICOs are very rare now! Once we chose an ICO by reading their whitepaper, roadmap, by seeing the partners and a large number of members in social platforms! But those days are gone! Scammers are very alert and clever, so, personally, I think IEO is the better option now!