It can be undoubtedly said that,BTC is the most popular crypto-currency.Because its coins are very expensive n price is increasing day by day.Investing here can be beneficial easily.It is normal that wherever it is beneficial, it will become popular with everyone.
Bitcoin is the first digital currency in the world. That's why Bitcoin is popular. When Bitcoin is so valuable, many coins is bore and try to catch up Bitcoin. However, some of them is fake. Bitcoin is the most trusted coin nowadays. It has brought hope to many people's life. We can deny its benefit. That is the reason why Bitcoin is the most popular cryptocurrency.
When people talk about cryptocurrency they definitely talk about bitcoin. In the mindset of people know is that bitcoin is cryptocurrency and cryptocurrency is bitcoin itself already. I still agree that if transaction price and speed can improve then bitcoin can truly stay at the top to be the most popular cryptocurrency among all.