Same as here in the UK then, just with different names.
Curly kale (Scotland wants nothing to do with it, thanks - we have far nicer varieties!) is the most widely available, so no wonder so many people think they don't like kale. My chickens won't touch it! And the supermarket stuff is always full of woody stems just to make it even worse. Dinosaur kale is what I'd call black kale; usually sold as cavolo nero. Much nicer but the stuff in shops can still be very variable.
Shetland, Sutherland and some of the flatter-leaved Red Veined Russian varieties are some of my favourites to grow. The immature flower stems are really crisp and sweet, eaten straight off the plant or just very lightly steamed or fried.