Ethereum has high gas, but projects that come out of the ethereum network are quality.
The Binance Smart chain has cheap gas, but the projects that come out of the BSC network are mostly trash.

The conclusion is that it depends on what you like and what you need, when you are a small trader or only make small transactions, use the BSC.
However, if you are a big investor I'm sure you will look for projects with the ethereum network because they are of higher quality.
This happened because the cheap transactions on the BSC network made many projects that were published haphazardly and even easily entered by fraud.
Meanwhile, with the ethereum network which is expensive per transaction, the fraudsters do not want to be here, they need a lot of transactions to deceive people and prefer cheap networks every transaction.