Cast iron is excellent for storing a lot of heat and then releasing it over a long period of time for searing things, etc. I love my cast iron cookware. But it's not a good choice for more delicate cooking where you want to change the temperature of the pan quickly and temperature control matters. Copper is noted for this and is popular in professional kitchens for precisely this reason. And gas allows you to tilt a pan to blast one side which is important when reducing sauces or when you want the oil to rise up the side of something to crisp it, etc. Alas, copper won't work on an induction stove.
I've never heard a chef say that getting a pan hot and staying hot quickly is their number 1 optimization. Except for boiling water, which induction is great for.
But every home cook has different things they like I guess.