There is a information in the corners that Bitcoin cash will goto a new height a touch near $4000very soon and may even the king. A lot of people are shifting from Bitcoin to Bitcoin cash.
This is not a right time in both the coins. Because all the cryptocurrencies are down in the market so Bitcoin cash is raise in the market automatically Bitcoin also raise. But you are expecting 4x profit in future because now 899 USD in current market price.
I think Bitcoin is always high potential cryptocurrency no one is touch the growth. If you like Bitcoin cash you should invest but Bitcoin is the most promising investment.