The Ethereum blockchain is one of the most popular and most advanced blockchains. Its network scales well for fast transactions and allows developers to build DApps. As a result, Ethereum has become the industry standard for smart contracts and blockchain-based applications.
Cardano and Avalanche have made inroads into Ethereum's market share. Both have raised significant funds and are currently bulking up their ecosystem. Both have smart contracts and a PoS algorithm. The second half of 2021 will be crucial in the race for second place. How well each of these two networks implement their latest updates and overcome technical difficulties during rollout will determine which one will become the second most popular protocol.
