The answer to 'which is better HVAC system or' is that there is no one-size-fits-all 'better' HVAC system. The best HVAC system for your home depends on factors like the size of your home, your climate, your energy efficiency goals, and your budget. In general, central HVAC systems that use a furnace and air conditioner or a heat pump are the most common and offer good efficiency and whole-home climate control. However, ductless mini-split systems can be a more efficient option for some homes, especially those without existing ductwork.
When choosing an HVAC system, consider the upfront installation costs, ongoing energy costs, maintenance requirements, and the system's ability to keep your home comfortable year-round. It's also important to work with a qualified HVAC technician to ensure the system is properly sized and installed for your specific home.