(relative) merits; superiority or inferiority; quality
二人の実力に優劣はない。
There is no difference in ability between the two.
作品の優劣は審査員が判断する。
The relative merits of the works are judged by the panel.
単純な優劣ではなく個性の違いだと気づいた。
I realized it was a difference in character, not a simple matter of superiority or inferiority.