Why is Polkadot the best?

I've heard so much buzz about Polkadot, but why exactly is it considered the best? Could you please elaborate on its unique features and advantages that make it stand out in the world of cryptocurrency and finance? I'm particularly interested in its interoperability capabilities and how it solves the scalability issues faced by many blockchain networks. Also, how does Polkadot's governance model contribute to its overall success? It would be great if you could provide a comprehensive yet concise answer to these questions.