Which is better Polkadot vs Cosmos?

Which blockchain platform offers more advantages, Polkadot or Cosmos? Could you please elaborate on their respective strengths and weaknesses? I'm particularly interested in their scalability, interoperability, and community engagement. Also, how do their consensus mechanisms compare, and which one might be more suitable for a decentralized application that requires high throughput and low latency? Additionally, how active are their respective developer communities, and how does this impact the overall ecosystem? Your insights would be greatly appreciated.