I think for now the most valuable coin is BNB, because I think BNB is very good, it can even compete with ETH, BNB has a gas fee that is much cheaper than ETH. BNB can continue to grow, thus becoming an important part of the crypto world
Talking about the coin between Ethereum and BNB, I think everyone already knows that both are promising coins and there is no doubt about it,
indeed BNB transaction fees are currently much cheaper than Ethereum,
but even so it looks like Ethereum transaction fees are starting to drop little by little and that's good news