Each of the 3 major cloud providers are strong and cheap and each one is best for certain kinds of workloads.
Two examples are GKE on Google Cloud Platform, which has the best container orchestration, and Microsoft Azure ML Studio, which can sometimes make machine learning codeless, effortless.
State College Software runs things on all 3 clouds and prefers AWS.
We also like working on the bare metal you already have, or, similarly, virtual machines at little providers like linode and digital ocean, and maybe most of all, the littlest of all, docker:
