bitcoin is digital currency and gold is a physical assets there isn't comparison between these two assets since bitcoin is decentralized so no one can manipulate its and there is no possibility to replace its with gold
Well if based on popularity, gold is still more popular over bitcoin, but if we will based on the future, i am confident that bitcoin future is more bright over the gold, because many people all over the world now is buying bitcoin and i think the future price of bitcoin can be more high over the gold price.
Even gold is more popularity than Bitcoin but actually the valuation of Bitcoin already overpassed Gold in the last year.
People still use gold because it's the stable property that could help them stabling their money.
But people come to Bitcoin because of it's potiental and how much money it can make for them even they still have a chance to lose money also.