The most important thing to look out for in a token is the real world usage of the token if the token can't be used in the real world then the token isn't worth it to invest in, if it have features that are quiet useful in daily life or it solves any problem then the token is worth investing in. And most of the token ICO that are being launched now are just waste but the real deals were made during 2015 when a few but good projects were usually crowd funded.