Which cryptocurrency is best adapted to Fiat-free spending?

As a keen observer of the cryptocurrency landscape, I often ponder which digital asset is best suited for Fiat-free spending. With the increasing popularity of decentralized finance and the rise of alternative payment methods, it's crucial to identify a cryptocurrency that offers seamless integration with real-world transactions while maintaining a robust network and user-friendly interface. Could you elaborate on the key factors to consider when evaluating a cryptocurrency's suitability for Fiat-free spending? Is there a particular token or blockchain technology that stands out in this regard?