It also is the most expensive. Porcelain-coated cast iron is also very good because it's strong and the coating keeps the iron from rusting. If weight is a problem, other materials coated with porcelain may be a better choice. Chrome is the least durable and will rust, Myers said. There's nothing you can do to keep them from wearing out.
Stainless steel is best.
Porcelain coating is next best and will also last a long time. Powder-coated hoods are better than painted cast aluminum, which can peel. These burners can be helpful in providing a place to cook a one-pot side dish. People either use them or they don't. You can help extend the life of your grill by buying a good cover for it and keeping it clean.