Ethereum offers fast deals at a lower cost. But I doubt the bitcoin will go back up after Lightning Network will be fully implemented and functioning, because bitcoin down I have to take some action to protect my assets, and finally convert all coins into eth is the right one. In addition, many projects are more accepting of eth than bitcoin and I still do not understand why that happens, ethereum has the potential to replace the above bitcoin but the price gap between the two is very far, not easy and it may take a long time for ethereum to reach above potions.