I'll go for bitcoin, because bitcoin is the currency threading for the future, then you know what I'm saying, you can buy all things maybe in the future using bitcoin, so if you have million of bitcoins in the near future, you can buy millions of gold. Now just earn and save more bitcoin for investment.
Me either, I will going to choose bitcoin. Even it is a online currency and we can physically hold it. Bitcoin is offering a lot of services, and it is a currency itself.
And I can't have gold at all so I am choosing bitcoin at all.