When choosing an API style, consider the use case and requirements. GraphQL Federation is suitable for multiple teams working on different parts of the API, while tRPC is better suited for single-team development with TypeScript-only clients and servers. gRPC is ideal for server-to-server communication, WebHooks are useful for event-driven architectures, AsyncAPI is designed for long-running operations across companies, and REST / GraphQL can be used for public APIs. Ultimately, the choice of API style depends on the specific needs and constraints of each project, and a one-size-fits-all approach may not be effective.