兄たり難く弟たり難し（けいたりがたくていたりがたし）

Japanese vocabulary

Meaning: both people are superb in skill (and thus it is hard to rank them)

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “兄たり難く弟たり難し” pronounced in real videos (YouGlish)