Web3.js and ethers.js are JavaScript libraries that allow developers to interact with the Ethereum blockchain. They are both great libraries - either library will likely meet the needs of most Ethereum developers. This article is a comparison of web3.js and ethers.js, focusing on their similarities and differences, so that you can better understand the nuances of the libraries. It is written with the intent of educating developers to understand the tradeoffs between the two libraries to be able to make a decision of which library to use for their particular use case . This article includes resources that may be useful for those who are new to blockchain development or programming in general.
TL;DR: Both libraries work. For your use case, one library may be better for you.