Definitely gold!
Bitcoin don't have 3000 years of use!
Also today everything is backed by gold! l don't like comparison gold bitcoin it is to early for that!
Yeah, no. Barely anything is backed by gold today, there is not a single first-world country that has it's currency backed by gold. I can't even think of any third-world countries that have currencies backed by gold.
I do see your sentiment about it being too early to compare gold and Bitcoin, but I would confidently say that Bitcoin is digital gold.