True, in the other side BCC is more profitable to mine in the sense of finding blocks, one more thing nobody use it. But in the long run, and from time to time, clever miners are shifting between BCH and BTC whatever is more profitable.
It depends upon how large is your hashing power,if i am holding a bigger hashing power,i will mine only bitcoin because of the valuation it has,but since the difficultly level is really large i would rather settle with bitcoin cash ,it all depends upon how much money you have invested into mining and for small players like me i would choose bitcoin cash to mine than bitcoin.