Its true that there are many crypto currencies which have come to existence in the today's time all over the world and all of them are doing really great in the financial markets. Because of which their prices are increasingly regularly. But out of all the crypto currencies I think Bitcoin and etherium are the two crypto currencies which are really at the top of the crypto currencies chain. As they have the highest amount of popularity and demand among the people all over the world.  So one can say that Bitcoin is the king and etherium is the queen among all the crypto currencies.