If answered honestly i will still prefer fiat to store in more quantity. I will store BTC as asset and not more than 10% of my total wealth. Because saving all life earning in volatile assets is not a good idea and a portion is enough to store because that 10% may give 10x or 100x when btc really become single word currency BUT if it fails then you will bear only 10% loss.
So in any case where usd doomed and btc boomed then you are in safe mode and if btc becomes zero (worst case) then also you lose little bit.