At present, the market value of eth and bch have been taken into account, and bch computing power is higher and higher, so the price should be able to stabilize the second or third place.
If you look at the market value then BCH is much higher than eth for now but i think there are whales who are keeping this BCH on a high value and not letting it dump below a certain point. On the other hand ethereum is growing naturally and if we think of long term, i would say that ethereum will remain the 2nd best coin , bitcoin ofcourse being the first one.