I think bitcoin will lead the currency market because it was created as a way for people to send money over the internet. There are many advantages of bitcoin like Direct Transfer, Greater Liquidity, Security and so on. Bitcoin's maximum supply is limited to 21 million coins. Cryptocurrency gains value when demand rises higher than supply. for that i think bitcoin will lead the currency market in near 5 years. Which currency you think will lead?
It's been leading the crypto market since it has started and when it was launched. That's why it's no question that it will still lead the market for the next 5 years and more.
The design of it by having a limited supply to 21 million and all of it will be mined estimating after a century is what makes it a perfect asset and choice to be the leader of this market.
In addition to its natural feature of having a halving and being a proof of work.