"복숭아는 고구마보다 맛있습니다."
Translation:Peaches are more delicious than sweet potatoes.
Agreed. It's not good to teach 맛있다 as delicious. It's done because it is easier to teach Korean kids to speak one word over two words, but it's not accurate since all they can express is either DELICIOUS or NOT DELICIOUS (or yucky). That's a spectrum for a food snob!