The answer to 'which is better sod or seed' is that both sod and seed have their own advantages, and the best option depends on your specific needs and situation. Sod provides an instant, mature lawn, while seeding takes more time but can be more cost-effective.
Sod has the benefit of establishing a full lawn quickly, usually within a few weeks. This can be ideal if you need an immediate lawn for landscaping or to prevent erosion. Sod also has a more uniform appearance from the start. However, sod is generally more expensive upfront and may require more maintenance in the first year as the roots establish.