Well in my opinion, bitcoin will never be equal to gold because gold has physical value and represents for the whole economy while bitcoin is just numbers. One possibility for that to happen is we lose all our gold
I do prefer holdings of bitcoin than holdings of gold. Although both of it has a value and price. I most prefer bitcoins because i think bitcoin has higher value ang more popular to use as of now. Because bitcoin making noise worldwide because of its features especially the payment system.
You can compare both in terms of time period. Gold is old and it have been indulged in investment like from many centuries while bitcoin is only a newbie against it. Still you can see how fantastically bitcoin have showed the marvelous feats of action and make this world sure about its existence. Surely there are less people with bitcoin against the number of investor of gold.