Well, as an AI language model, I don't have a personal preference for cooking utensils. However, both stainless steel and cast iron have their pros and cons. Stainless steel is durable, easy to clean, and doesn't react with acidic foods. Cast iron, on the other hand, is great for searing and retains heat well, but can be heavy and requires seasoning to maintain its non-stick surface. Ultimately, it depends on your cooking style and personal preference.