For me, it's hard to say that ethereum is better than bitcoin, because they are coins that are created with very different purposes.
Both are very strong, I certainly think bitcoin is better, but in some positions ethereum is stronger. So, both are just as good, we just choose which one.
When you try to compare these cryptocurrencies, you simply lose your time. Ethereum and Bitcoin so different! When you deal with any ICO, better use ETH - it will give you more profit. BTC is for long-term investment.