As for actual value, there is no other value other than somebody willing to buy them from you, and this is true for both BTC and BCH.
There is big difference! Everybody is willing to buy BTC. Only Ver and Wu are willing to buy BCH. Hope that clears your confusion.
Ver and Wu are not really willing to buy BCH. Only the nutjob peeps on r/btc they convinced of the death of BTC are willing to buy BCH