To the wife that says everything sticks to cast iron; my cast iron is the most stick-free cookwear in my kitchen. It is also the most durable. The only thing I use a teflon gridlle for is when I'm making pancakes, or crepe's. But for almost everything else, including tomato sauces, a well-seasoned cast iron pan rules in my kitchen.
The only reason I use the teflon griddle is because it distributes the heat more evenly across the pan surface. I have a gas stove, and the CI has hot spots were the flame touches the pan metal. This gives me uneven cooking temps, which makes it difficult to make really great pancakes. And if you know me, you know that I take great pride in my pancakes.
Seeeeeya; Chief Longwind of the North