Bitcoin is the best way of transaction ad payment system since bitcoin in the first cryptocurrency that used blockchain technology.

Bitcoin became the fastest way to transact everything because we are using now the blockchain decentralized technology. Anything that happens on it is a function of the network as a whole. Some important implications stem from this. By creating a new way to verify transactions aspects of traditional commerce could become unnecessary. Stock market trades become almost simultaneous on the blockchain, for instance — or it could make types of record keeping, like a land registry, fully public. And decentralization is already a reality.
A global network of computers uses blockchain technology to jointly manage the database that records Bitcoin transactions. That is, Bitcoin is managed by its network, and not any one central authority. Decentralization means the network operates on a user-to-user (or peer-to-peer) basis.

And that's the reason why bitcoin is the best for all crypto currency aside for bitcoin is the highest price value in the market.