The best ICO's are in my opinion of course: Thekey, Arcblock, Titanium, Crowdgenie, Shiftcash, Adbank.
I do choose up for adbank,arcblock and snovio. I have seen this projects that do really have the potential and do have bigtime and experienced dev/team which we can somehow assure that this would give us the chance on making money. There are lots of coins/projects to choose from its up to you on which coin you would decide to jump in.