words and phrases about a range of quality or price

Cream of the crop

The best of the bunch or group

“Our personnel manager is only interviewing the cream of the crop this year.”

The above sentence refers to the top students

World-class

The best, able to compete internationally

“Kamiya-san is a world-class marathon runner as well as our top saleswoman.”

Bottom of the barrel

The worst quality, the leftovers

“Junko-san said the antique bazaar was mostly junk; bottom of the barrel goods.”

High-rent

Expensive, or in an exclusive area

“The new hair salon is in a high-rent neighborhood with lots of caf_s and clothing boutiques.”

High-end

The best (highest) in a quality or price range

“Toru-san bought the high-end stereo speakers on sale for the low-end price.”

the opposite is low-end.