What altcoin has the biggest growth potential?
Who has good marketing campaigns, interesting mining model and etc....
Maybe you can suggest to look at some altcoints that are going to launch soon?
I have no doubt in my mimd that ethereum is the next big thing. And we look on some altcoins that will release soon. We cannot tell if yhat altcoin will be good. Because after it was release in the market. Most of them drops big in their value.