ERC-20 tokens are better. They're programmable and flexible to work with on other chains using the same EVM. The higher fees are only because Ethereum is more crowded than Bitcoin itself. But upcoming network upgrades should solve this issue in the long run. I don't think BRC-20 tokens have a future, especially since Bitcoin is not designed for smart contracts. You can't just make a token with robust features on the BTC blockchain.

The hype on BRC-20 will be short-lived as people realize Bitcoin's true limitations relative to the Ethereum blockchain. With developers announcing their intentions to block Ordinals inscriptions, you can say goodbye to BRC-20 tokens for good. Just my opinion