At most I trade on HitBTC it's got plenty of altcoins but also I combine it with decentralized exchanges like iDEX, EtheDelta if these exchanges don't have the coin I need I can use HitBTC but on the other hand if the amount is somewhat big I prefer decentralization and to be on a safe side. I think future is for decentralization, I'm still waiting for another dex platform DexAge p2p Escrow trading I really like the concept and idea of such exchange platform.