Personally, I think DEX ICOs are very promising for this year. Now we see a lot of "tokenize" and "applicationized" projects. But we have to admit that there is still a lot of core technology missing. Etherium nice, but single-threaded. Cardano, a big hope. Paralyzed blockchains (PoP or PoS) anyway missing. Scalability not yet solved. A common standard for DApps not yet defined. Okay, u can say Etherium is, but Ether is mostly a platform to issue ERC20 tokens nowadays. Compared with InternetOfInformation we are with Crypto at the Netscape Level. HTML5 far way, but surely it will not take as long as it took for InternetOfIOnformation.

My vote is DEX for 2018.