eth has been proven in many exchanges and now eth needs a lot of projects for ico. so I think maybe BNB still has to be more developed if it wants to compete with Ethereum. It won't be that easy to rely on the big names of binance to overtake ethereum
Most of the IEOs are still under the blockchain of ETH, so I guess the system of ETH are still intact and it can still go for the new improvements over the years. BNB is a big name for an exchange, but its coin is just a coin nothing is special in my point of view, anyway lets see it on the next bull run to confirm if BNB can do overtake ETH.