Bitcoin is the pioneer of blockchain technology. It is the first ever digital coin which initially started to bring the idea of digital p2p currency into reality. That is the reason why it is popular among other coins. ETH started late but due to its technological superiority it cam up to this level. However, recently Ripple has overtaken the ETH and became 2nd in terms of market cap just after the bitcoin.

Seeing this exponential growth of both ETH and Ripple, I have invested in both of them. I also have a plan to invest in some more coins like Dash or Litecoin in recent future. I am just studying them now.