Bitcoin is constantly better than gold because it may be transferred easily in a span of mins or hours depending on blocks.
And bitcoin also can have by any people just by buying online unlike gold is hard to find.
I will select both, but in fact it depend on your interest that for what purpose you are going to select bitcoin or gold. if you want to select bitcoin then it is good for trading and increasing the amount of your money while gold is best for saving your money because there are more chances that its value will not decrease. but there are always chances that some one can steal your gold.