I own both, plus silver.. I think they all will do well, for the same reasons. However, I have a very long term hold/outlook for them as an investment.
That's good to hold bitcoin as well gold. But everything needs to be given equal preference as there is no assurance of of what happens in the future.
If its assurance gold has the advantage towards bitcoin,gold is well establish and is much more powerful than fiat currency.
Bitcoins only advantage towards gold is that its price is fluctuating so much that its always getting a higher price.