Great question, but I would also take the 2 Bitcoins!! 
Looks like everyone has the same choice here Since just a month ago 1 bitcoin was worth more than one kilo of gold, it's like asking "would you choose one BTC or two?"
If he had this thread that time , then best to have this question , but since now that bitcoin price subside i think it is ethical to put this on.
There are also ups and downs with gold. Although it is less volatile than crypto, but it has a significantly lower potential profit over the long run as well.
https://www.bullionbypost.eu/gold-price/3year/kilograms/USD/