Microdata, RDFa or JSON-LD Appropriate or best usage?

Question

I have been wondering which of those formats is \"best\"? Schema.org, Microdata, and RDFa are bit of a pain to implement. They can break validation and require quite an effo

Answer 1

Google uses JSON-LD as reference examples for Structured Data SEO for their Knowledge Graph (companies and people). See https://developers.google.com/structured-data/customize/overview

I personally use a combination of JSON-LD and Microdata for my sites (for the time being).

I would say they have other means to identify if the information you provide through JSON-LD is relevant to their search engine (like checking your page is actually talking about what it claims to talk about).