This comparison is useful because both records are verified high-rise condo buildings, but the structured data starts in different neighborhoods. Cristalla is in Belltown, built in 2005 with 195 residences across 23 stories. Escala is in Downtown, built in 2010 with 269 residences across 31 stories.
The published amenity lists overlap: both records list pool, concierge, spa, and gym, while Escala also lists wine cellar. The published HOA ranges are different as well: Cristalla is listed at $700 to $1600, while Escala is listed at $900 to $2000+. Those facts are a starting point, not a substitute for current HOA document review.
I would compare the exact units side by side on monthly cost, floor, exposure, parking, reserves, rental policy, pet policy, and current building documents. The better choice is the unit and HOA position that underwrites cleanly for the buyer, not simply the Belltown building or the Downtown building.