[ZRX] 0x vs. [KNC] Kyber Network vs. [AST] Airswap

[ti988co]

Let's say I want to put some % of my portfolio in one of those.

What are the differences between them?
As newbie I found out that all of them cover same area - decentralized exchange.
Which of them is most promising - can have bigger gains and why?

My analysis, please correct me if I'm wrong:
1. ZRX was the first omong those 3 and has the most to show.
2. KNC has Vitalik as advisor and has probably the higest hype.
3. AST is still much under ICO price and the 24h volume is pretty huge regarding the market cap.

Thanks for your opinion 

[MorganFreeman41]

KNC clearly has an advantage over all the others. in 2018, there are many activities planned through which KNC will soar in price, especially after the opening of the exchange

[minbosen]

I think AST is the most promising, just as we can see, the AST pumps much fast than knc, though knc was very hot on this forum.