According to Michaël van de Poppe (@CryptoMichNL), his current altcoin portfolio is expected to yield a higher beta compared to blue-chip cryptocurrencies, indicating higher volatility and potential returns. He also mentioned that if he were not invested in his current portfolio, he would consider investing entirely in Ethereum ($ETH). This insight suggests a strategic preference for altcoins over blue chips for higher risk-adjusted returns, while still acknowledging Ethereum's potential as a solid investment choice.