well, even though it looks the same, I think bitcoin is indeed much more sought after, and is needed than ETH. although most of me see that ETH use is often used in investment, but the value is quite cheap. however, these two coins have great potential, only if compared, of course people prefer bitcoin.
if that preference becomes relative for each person will be different. sometimes people prefer etheruem because the price is more in line with the capital they have, and also for daily trading I think it's more interesting. but for those who like for the long term, of course they prefer bitcoin, even with large capital but I think the market growth is more certain.
If we take into account the ratings of the cryptocurrency market, then there are even more suitable cryptocurrencies for investment, when you do not need to have a lot of capital to get a good income. For example, you can bring a coin a populus, which today has a price of $ 1, and last year reached $ 50.