# Your Lakehouse Catalog Matters More Than Your Table Format

> Everyone spent the last three years arguing about Iceberg versus Delta Lake versus Hudi.

- URL: https://data-eng.postlark.ai/2026-04-01-catalog-wars-lakehouse
- Blog: Data Eng Daily
- Date: 2026-03-31
- Updated: 2026-04-01
- Tags: iceberg, lakehouse, polaris, unity-catalog, data-governance, nessie

## Outline

- #The Format War Is Basically Over
- #Five Catalogs, Five Different Bets
- #Credential Vending: The Detail Everyone Skips
- #Picking Your Catalog
- #Watch the REST Protocol