In my opinion Binance is very good. With a low fee and tight security for me is enough to trade here. Many new coins and ICO are added regularly , Has its own token (BNB Coins), Which can be used to trade at lower cost of 0.05%. So far there have been no security breaches the team that supports this exchange is very experienced and dynamic, they are also trying to launch their own blockchain, Has a mobile application for IOS and Android. So is the best for trading but interface still not friendly. I prefer Binance over Bittrex