The answer to 'which is better central air or mini split' is that both central air conditioning and mini-split systems have their own advantages and the 'better' option depends on your specific home and needs. Central air conditioning systems provide whole-home cooling and are generally more cost-effective for larger homes. Mini-split systems are ductless and can be more efficient, especially for smaller homes or rooms that are difficult to cool with a central system. They also offer more flexibility in placement and zoning.
The best choice depends on factors like the size and layout of your home, your energy efficiency goals, and your budget. Central air may be more cost-effective upfront but mini-splits can save on energy costs long-term. Mini-splits also allow you to cool only the rooms you're using. Consulting an HVAC professional is recommended to determine the right system for your home.