I don't think it is always advisable to invest in ICOs there are some project out there presently that you can find value if you invest in them like Singularity, Golem, Vdice, Firstblood all are presently below the ICO price except Golem that pumped this week.

Concering ICOs I will go for 1Ex like the team behind the project, Qtum is another solid project to look at