I'm actually a fan of both projects, however saying people shouldn't invest in BNB because it's centralized doesn't really make much sense, the aim of investing is making profit after all. BNB also has solid product backings, Binance smart chain is cool too and curbs the absense of smart contract which was an initial drawback. I like the fact that some newer projects / blockchains sprout and try to compete with existing projects, this help to improve on overall blockchain architectures. Everyone should decide what coin to invest in, no one should pose as a financial advisor here.