It is difficult to compare what is better - Bitcoin or Etherium, you can talk about two systems, like vegetables and fruits. After all, they, in fact, never were in the rank of direct competitors. Bitcoin was originally considered as a means of payment, whereas on the Ethereum network, tokens are used in the implementation of smart contracts. Even the representatives of this system suggest not using coins of ether as a means of payment, but this approach still does not help to get rid of the use of its tokens on exchanges.
It should be borne in mind that Bitcoin, in fact, is deflationary, since there is a strict limit on the issue of coins of this payment system. The total amount of issued crypto currency will be 21 million digital tokens. In the case of Ether, we are talking about inflation, since the annual release of these funds reaches 18 million coins. Thus, if we consider this money in the long run, the price of Ethereum coins will fall, and the demand for Bitcoin will increase. In addition, already at the moment the number of coins of the first more than 6 times higher than the number of tokens invented by Satoshi Nakamoto. Therefore, such a comparison is incorrect.
In comparison to Bitcoin with Etererium, you have to take an example of Mother and children. I think Bitcoin is like a mother and ethereum just like a son or daughter. you know that Bitcoin has already reached a maturity level and it's been credible and acceptable currency in recent time. on the other hand, Ethereum is also a good platform but it's getting developed day by day. We know that most of the ICO Token is running the Ethereum system. Normally, they are dependent on the Ethereum platform. That's why Both have played an important role in the digital platform.