1. BinanceDex - the name of the exchange speaks for itself. But in reality this is not a true dex.
2. EtherDelta / ForkDelta - old proven exchangers. There was never a problem with them. True Dex. Only Ethereum tokens.
3. Idex - also never have problem with this exchange. It's not true Dex. Now KYC verification nedeed.
4. Komodo AtomicDex (betha now).
All of the DEXs that you mentioned are DEX that has been trusted and is used by many people to transact. BinanceDEX may be new but seeing the value of transactions that continue to increase, I think BinanceDex will be able to become the largest DEX, moreover many projects that already use BNB blockchain to be traded on Binance Dex