We'd argue that bitcoin still remains one of the most state-of-the-art cryptocurrency out there despite being the oldest, some of the issues discussed by the cryptographers and bitcoin developers on GitHub is absolutely on the next level.
The invention of decentralized and open p2p networks (blockchain) birthed from Nakamoto's bitcoin has made it possible for all kinds of use cases, the free market environment over time will definitely decide which of these implementations will survive.
Bitcoin did get a lot right from the start and was very innovative. It is still a pretty new technology. The next few years will be interesting.