Bitcoin will always be ahead of other cryptocurrencies, simply because it was the precursor to all of them, and over the years it has been gaining confidence in the population, since no individual or organization can control this decentralized network. People prefer to invest their money in bitcoin, because it is not regulated by any country and only they have control of their finances, without having to render accounts to the bank. It is also a very easy to mine cryptocurrency, and today there are many people around the planet, trying to win satoshis for free on the internet or buying them to hope that their value increases in the not too distant future.