Lately a new "Exchange 2.0" taking over. Bittrex & Polo suffer from many complains, locking accounts and many other issues.
Kucoin & Binance are quite different. they have their own token which give benefits.
Both are going very big in Asia and International.
Check out how Kucoin perform vs other exchanges:
https://www.kucoin.network/Your opinion?
I prefer kucoin more than any other exchanger that i use in the past because there are some markets before who get issues on where the scenario is, their coins are lost due to the drastic changes of cryptocurrency in the market.