The best service for meeting the requirements of automated, consistent deployment across multiple environments using codified templates is the Infrastructure as Code service provided by the cloud vendor. This service enables the definition of infrastructure in code format, which can then be used to create and manage cloud resources automatically. It ensures consistency and reduces the chance of human error associated with manual setups. The console, while user-friendly for manual operations, is not designed for automated, templated provisioning. The Command Line Interface facilitates scripting for automation but does not inherently provide templating or state management like the Infrastructure as Code service. Auto Scaling service is primarily used for adjusting resource capacity in response to traffic demands and does not cater to the requirement of environment setup through codification.