Now the question is, which of the aforementioned platforms is better? AFAIK, Binance Smart Chain (powered by BNB) has a greater level of centralization than Polkadot itself. This should make the latter platform a much better choice for everyday people. Still, there's potential for BNB as it could attract businesses and companies in the mainstream world. Which will survive in the long run, is an excellent question. Thoughts? 
Once something is centralized , then the community wouldn’t show much interest in it and I guess that’s what is happening with the Binance Smart Chain, a lot of developers would prefer the alternative that is decentralized as they would like a platform that’s going to give them the full freedom to be able to run their projects the way they want it without any form of restrictions at all.Then as for Polkadot, this is not the first time I’m seeing people hype a new project as an Ethereum killer, I am not going to believe any of that until I see it come true. In most cases Devs are still going to consider Ethereum.