A is overrated compared to B. AはBに比べ、レートが高い。
The value of A is more expensive than value of B. Aのバリュー（価値）はBより高い。
A is expensive compared to B. AはBより高い。
relatively high in price compared with other similar products
more expensive than other products in the same category
Aは３つで1000円、Bは５つで1000円。味や品質に違いはなさそうなのに、AはBより割高。
The price of A is 1000 yen for three pieces. But B is 1000 yen for five. A is more expensive than B although they look the same in taste and quality.
アメリカ合衆国 
日本 
