I have always had a gas cooktop, as well as gas downdraft cooktops. I like to regulate the flame height also.
HOWEVER, I am very interested in induction cooktops. Their temperature can easily be regulated and they are lightening fast! They are AWESOME to watch heat up in the dark!
Here is an older article on them but is accurate except for the prices. I have seen the 4-burner induction cooktops for as little as $700 in the past year. They DO require a higher electrical service than is available in many homes, though. And you will have to have new pans to cook on them. Aluminum, stainless steel and cast iron will not work.