I believe that there are no coins to beat bitcoins in next 10 years or more .
As you know when bitcoin is down , all altcoins (including ETH) are deeply down . Almost altcoins are based on bitcoin tendency.
Yup. All altcoins are dependent on Bitcoin prices because Bitcoin only drops 200$-300$ so this market is going to be very upset and people will tend to sell more than they buy. I believe that Bitcoin will always be the king of Cryptocurrency as this is the trusted and most trusted coin in this period.