If I had to put ALL my wealth into one for a decade... I'd go gold. I'm not a huge risk taker, gold is the most likely to preserve the bulk of my wealth during that decade.
Maybe yes or maybe no.
But I will remember this day after 10 years I will pm to you :-)
I'd only do that if I HAD to put 100% of my wealth into one or the other. Gold has a long history of holding value, it would most likely preserve the bulk of my wealth in that decade. One should never put 100% of their wealth in any one thing, it's moronic. Bitcoin is only a small % of my various investments. Similarly, I keep my money in dozens of wallets both hot and cold just as I have just shy of a dozen bank accounts spread out among various institutions.
Diversification - Don't put all your eggs in one basket