Bitcoin is the first cryptocurrency and I also believe everyone is more familiar with bitcoin than other coin coins, In other coins features that is occurred in the present day was created to defuse the weakness of bitcoin. Maybe not today but not forever
Bitcoin is the foundation of the other cryptocurrencies and it is popular and more people are recognizing it for the mean time. We really dont know if the bitcoin will take lead forever for there are many other cyrptocutrencies that may be more better than bitcoin but isn't that popular and recognize but as for now bitcoin will lead in the market.