Debian and its derivatives, such as Ubuntu, are often considered the best choice for server environments. This is due to their stability, security, and extensive package management system. Debian's long release cycles ensure that software is well-tested before being deployed, making it a reliable choice for critical applications. Most repo's contain stable versions of software, which reduces the risk of bugs and compatibility issues, and there are may packages available for Debian, making it easy to find and install the software you need but still stable.