Criterion Blu-ray

Criterion Blu-ray > Arrow Blu-ray > Japan Blu-ray

Both Arrow and Japan Blu-ray seem to suffer from the gamma bug so contrast is more washed out.

Eureka MoC Blu-ray

MoC slightly better than Criterion http://www.dvdbeaver.com/film5/blu-ray_reviews_69/kwaidan_blu-ray.htm

Criterion 4K Blu-ray

Criterion 4K Blu-ray. See Chris's review

Criterion Blu-ray. Their 4K Blu-ray has minor additional filtering.