I use the Camp Chef Griddle and have no problems. A good seasoning and the food rinses off with water while the griddle is still warm.
However with stainless, food can still stick, and the griddle can still discolor from intense heat. Stainless just stands up to heavy cleaning and chemical cleaners better than carbon steel.
The two most common types of food grade stainless are; are 304 and 316.
Stainless steel products related to “edible” must use 304, or 316 stainless steel. While this requirement is adapted to the food industry and are usually labels as "NSF", the home cook is not bound by these standards, but many do follow them when applicable.
316 stainless steel is expensive and is used in high-end equipment such as aerospace and food machinery. 316 SS is more chemically-resistant in a variety of applications, and especially when dealing with salt and stronger acidic compounds such as lemon or tomato juice.
304 SS, is also known as “18-8” stainless steel, because it contains 18% chromium and 8% nickel. 304 is the most common stainless steel used around the world.
316 contains 16% chromium, 10% nickel and 2% molybdenum. The molybdenum is added to help resist corrosion to chlorides (like sea water and de-icing salts).