What to expect
At Karajía you look towards human-shaped forms high on a cliff; at Revash towards funerary buildings resembling small houses. These are burial sites, not rooms to wander into. Both are compelling, but seeing both is not necessary to understand the difference.
How it fits into a journey
Choose one from Chachapoyas. Leymebamba's museum can complement Revash if you leave it meaningful time.