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.
No you're right that no country has their fiat backed by gold any more. There's a lot of conspiracy about people in power trying to get their fiat back on the gold standard being eradicated and replaced by another compliant governing head (Saddam, JFK, etc.).
Now, I think this issuing of debt by the central banks has to reach a tipping point soon where it's just impossible to pay out (already pretty much has)... so when the whole fiat ponzi scheme comes crashing down and the dollar, euro, yen, etc. all becomes basically worthless, we have to go back to gold. Over the course of humanity, this has been seen countless times where the economics of a empire come crashing down because they try and diverge from gold as much as possible.
Now that we have internet and computers, this can all become pointless in that we have cryptos to trade out for goods and services... I think it will come to a point where bitcoin and other cryptos will have to be backed by gold rather than fiat.
So if you want to hedge your bets, I would put what you are willing to invest in 70% or so into gold and the rest into bitcoin... it's going to correlate pretty nicely in the long run... but you can hedge however you want.