Is algo better than Ethereum?

Could you please elaborate on the comparison between Algorand and Ethereum? I'm curious to know which one offers superior performance in terms of scalability, transaction speed, and cost-efficiency. Additionally, I'm interested in understanding the unique features and advantages that each platform brings to the blockchain ecosystem. Could you provide insights into their respective consensus mechanisms, security measures, and potential use cases? I'm also wondering about the community support and development activity surrounding each project. Thank you for your detailed response.