I dont think BCH will ever overtake BTC. BTC has a much wider audience and usability and you should hold on to it.
I agree with you.. In my opinion, BCH is just a BTC with faster transaction time... but so does most of altcoins out there, they have faster transaction time..
Other than that, BTC is better in every way than BCH..
I think we better hold our BTC, than trade it or invest on BCH ~