Is Arbitrum better than Polygon?

Could you please elaborate on the comparison between Arbitrum and Polygon? 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 of each platform, as well as any potential limitations they may have. Could you also provide insights into the community support and adoption rates of both Arbitrum and Polygon? Thank you for your assistance in clarifying this matter.