Trust is key in cryptocurrency activities- one of such is trading in Exchanges. So long exchanges maintain trust and friendly atmosphere as well as having transparent requirements, the exchange will receive patronage and thrive in the long run. In my opinion, Binance is doing well in the services they are rendering.
I think that bittrex proved to be the best. A very good indicator for today is that in bittrex give the possibility of exchange for Fiat.of course less is the fact that have to provide personal information to confirm your account.