Cardano is considered better than other cryptocurrencies for several reasons. Some key factors that set Cardano apart include its innovative proof-of-stake algorithm, Ouroboros, which is designed to be more energy-efficient and scalable than traditional proof-of-work algorithms used by other cryptocurrencies. Additionally, Cardano's focus on academic research and peer-reviewed development sets it apart in terms of robustness and credibility. The project also emphasizes scalability, interoperability, and sustainability, making it an attractive option for those looking for a long-term investment in the blockchain space.