It depends upon the situation. If the value of bitcoin fall down after the hardfork, its better if you trade Ethereum or Electroneum against the BTC. Since this two altcoin has a potential to have a good price in the market. If you put an investment here, you have a big chance to earn a bigger profit than the other altcoin. Especially electronuem, it is a trend now a days. And the platform of this coin was also good. And for etherium it is less risky than the other altcoin.