The whole question of Cloud A vs Cloud B vs on-prem is exactly why I think containerization and the use of Docker and Docker orchestration makes these questions somewhat irrelevant because you can deploy the same containers to both clouds (as well as on-prem), even at the same time. At that point you can A/B test to determine if one is objectively better than the other or simply set up one as the DR/failover location for the other.
