Even though ERC20 has a higher cost and slower speed, it remains a favorite. There are several reasons why the ERC20 remains a favorite despite its higher cost and speed. ERC20 has proven to be a safe and reliable platform to use. The Proof of Work consensus system used by Ethereum has been tested for years and has high security. In addition, the wide adoption and large number of nodes in the ERC20 network also enhances its overall security. So, the best decision on what platform to use will depend on the specific needs of the project to be built.