Agreed--Living Underwater is among the very top tier of dive ops on Coz. I dove with them even before Jeremy bought the name/boat, when Oracio, agruably one of the best Coz DMs ever, was in charge. I remember when Jeremy's children were born. Very highly recommended.
However, I find Dive Paradise, while certainly reliable and safe, to be a large and commercial op that caters to all levels of divers and lacks the personal touch of LU.