Stainless steel, all the coatings are coming out as bad for our health, and non-stick doesn’t last. Enamel can chip and also expose cheap material and that can also be bad for your health. Get bar keepers friend to remove spots or tough stuff, throw it in the dishwasher, it can take a beating especially if you put some money into it. It may not be quite as low maintenance as others but it’s a lot less than cast iron and you can use whatever in it. They heat up beautifully too. Total game changer.