As the term "fork" implies, both BTC and BCH can be seen as continuations of the original bitcoin path. Adherents of both coins claim to be the "true" coin, but both of them have advantages and disadvantages.
Of course, none of us know if any coin will become predominant, and if so, which one. But we can be sure that the value of BTC, BCH, and many more coins will continue to increase. Probably rapidly, and apparently soon!
It'll be an interesting ride ... to the moon ... regardless of which "crypto-space-ship" we are riding in.