for 2017 maybe the ICO is still very good for investment or entering at the beginning of the presale price which is very cheap, but you must know that this year the ICO is not very attractive and cannot guarantee profit because now is the era of IEO or IDO.
even IEO is not very popular for now. IDO may be more eyed for investors as something newer.
but for me, IEO being a solution that is actually still very good to run. unfortunately, not many of the good new projects can use a good exchange for their projects.