According to Cas Abbé on Twitter, the selected cryptocurrencies for analysis are Litecoin (LTC), Ethereum (ETH), and Hedera (HBAR). Recent data shows that LTC's transaction speed and lower fees compared to Bitcoin make it a viable option for traders seeking quick trades (source: CoinMarketCap). Ethereum's recent upgrade to Ethereum 2.0 has significantly increased its scalability and reduced transaction costs, attracting more institutional traders (source: Ethereum Foundation). Hedera's unique hashgraph technology offers high throughput and low latency, which is beneficial for high-frequency trading strategies (source: Hedera Official).