For me, KuCoin share (KCS) is the gem. Right now its market cap is only 1/10 of Binance coin. The quality of Kucoin exchange is on par with Binance, I would say. The only difference is volume. Binance has successfully gain a huge market share with over $1B daily volume.
People are praising KCS in this thread, but it's problematic, as the value connected to the existence of Kucoin, and people seem to forget that even big exchanges have exit scammed in the past.
And the volume is not the only difference between BNB. I admit had they had same problem but they have grown so much, and in so many areas, that i can't see no reason for exit scam. Also they had a decentralized platform in mind all the time then they made BNB.