Crypto-currencies: what is next?

Dear all, I invest in gold and silver and feel quite comfortable making suggestions. Whenever I speak with friends about crypto-currencies, I fail to answer a simple question: what should one invest into? Of course BTC would have been a safe though volatile suggestion, but now what will happen after the fork to BCC? Ethereum looked very promising until the DAO forked it as well.

Now with the latest news on possible terrorism financing (LOL, compared to fiat currencies) and hacks of exchanges or wallets, I really beg for your advice:

What. Woud. You. Recommend?

Thank you and hopefully asking for lots of other people very interested in crypto-currencies.