That is a difficult question as there is no single coding language that is best for every situation. The most efficient coding language depends on the type of project you are working on and the goals you are trying to achieve. Generally, when it comes to speed and efficiency, languages such as C and C++ are recommended as they compile code quickly and reduce memory usage. However, for web-based applications, languages such as JavaScript and Python may be more suitable. My advice would be to research the different coding languages and decide which one best fits your project's needs. Additionally, you can consider using a combination of languages to achieve the desired results.