1. Routing: Gin Gonic is a microframework designed for efficient routing of HTTP requests. It provides a high-performance router with low latency, making it ideal for building fast web applications. On the other hand, Lad is a full-stack framework built on top of Express.js, offering a more opinionated structure with pre-configured routing for ease of use.
2. Middleware: Gin Gonic allows for the flexible implementation of middleware functions to handle requests before they reach the actual route handler. Lad, on the other hand, comes with a set of pre-built middlewares that handle common tasks like body parsing, logging, and error handling, reducing the need for manual setup.
3. Templating: Gin Gonic does not provide built-in support for templating engines, leaving developers to choose their preferred solution for rendering views. In contrast, Lad comes with support for the popular Pug templating engine out of the box, streamlining the process of generating HTML content.
4. Database Integration: Gin Gonic does not enforce any specific database integration, allowing developers to use any database driver or ORM of their choice. Lad, however, comes with built-in support for MongoDB through the Mongoose ODM, offering a seamless way to work with databases in a Node.js application.
5. Validation: Gin Gonic lacks built-in validation features, requiring developers to handle input validation manually or use third-party libraries. Lad integrates with the Joi validation library, simplifying the process of validating incoming data and ensuring data integrity in the application.

In Summary, Gin Gonic focuses on minimalism and performance, offering developers flexibility in building web applications, while Lad provides a more opinionated structure with pre-configured components for rapid development.