Gas hobs for cooking. By far the best. As many others have said, they're what the pros use.
An AGA type oven though is the best oven. Large, always on ranges like that are a way of life, and are not cheap to run, but they are the heart of the house. They'll heat the house and hot water in a small house, means the kitchen is always warm, (This is good in Britan. Less good in Arizona..) halve the ironing, and provide by far the best oven for baking, or preserving.