WEB API is a better choice for simpler, light weight services. WEB API can use any text format including XML and is faster than WCF.
It works the way HTTP works using standard HTTP verbs like GET, POST, PUT, DELETE for all the crud operation.
Complete Support for routing
Response generated in Json and XML format using MediaTypeFormatter.
It has the ability to be hosted in IIS as well as self-host outside of IIS.
Supports Model binding and Validation.
Support for ODATA.
Supports stateless transfer of data.
Supports Url patterns and Http methods.
Note − ODATA (Open Data Protocol )is an open protocol which allows the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way.