Arbitrum, Optimism, and Mantle, all Layer 2 (L2) networks, show varying strengths in recent on-chain data. Arbitrum dominates with a total value locked (TVL) of $2.802 billion, significantly outpacing Optimism's $292 million and Mantle's $338 million. Arbitrum's TVL is approximately ten times that of its competitors. In terms of daily transaction volume, Arbitrum again leads with 2.7 million transactions, followed by Optimism with 1.79 million, and Mantle with 53,700. Arbitrum's high transaction volume reflects its mature ecosystem. Despite lower transaction numbers, Mantle offers the lowest transaction fees, potentially due to its modular data availability architecture, EigenDA. Overall, Arbitrum is the clear leader across TVL, transaction volume, and user activity. Optimism holds a stable user base but faces growth challenges, while Mantle, though smaller, showcases unique technical advantages with its cost efficiency.