In terms of being safe, I would go 100% with Gold since there are a lot of times that it is proven how good it is as an investment. Bitcoin is good too but not that safe since we all know how volatile it is in the short run though we should also consider the profits bitcoin gave in the long run. Even though it is volatile, in the long run, people got a lot of profit from it.
I can't argue this to other people since it always depends on their own choices because both have their pros and cons. I actually like gold to be as a safe haven but just like I said they both have pros and cons that's why I am more into Bitcoin than gold. The usefulness of both are depending on the situation just like these days when we have pandemic cryptocurrency is quite useful for sending money to anyone anytime.