The answer to 'drainage system vs' is that a drainage system is generally a more comprehensive and long-term solution for managing water runoff and preventing flooding, while a landscaping solution like grading and swales can be a more affordable and DIY-friendly option for some homeowners. Drainage systems involve installing underground pipes, catch basins, and other infrastructure to collect and divert water away from the home, while landscaping solutions use the natural slope of the land to guide water flow.
Drainage systems provide more robust and reliable water management, but they also require more extensive excavation, installation, and ongoing maintenance. Landscaping solutions like grading and swales can be a good choice for homeowners with moderate water issues and a DIY-friendly budget, but they may not be as effective for severe flooding or complex drainage needs.