Instruction:
Why should I use EKS over ECS?

Response:
EKS enables a greater degree of portability and reduces lock-in risks, as compared to ECS. Because it is proprietary, ECS has no equivalent in other public clouds. EKS is based on Kubernetes, which is open source and can run in any public cloud or on-premises location. EKS also provides much richer functionality in comparison with ECS.