Personally I prefer Exhibit to Tabulator because the data is stored in JSON files.
Exhibit data models are RDF graphs; these data models can be converted into RDF without loss. However, the Exhibit data model is a sub-model of RDF, as described below. This design choice allows for specialized, simple syntax (based on JSON) for rapid authoring. For simple, small data sets, we believe that Exhibit data models are sufficiently expressive. An Exhibit data model contains a set of items, each having a type and several properties.
via Danny Ayers