In my opinion, they are not really competitors and there is no better here. Both currencies have different use cases.
I believe bitcoin mainly use, for now, is to make the transactions that banks do not allow you to do, or that they charge very expensive fees. Those transactions ares remittances, currency conversions, payments in another currency, etc.
Another great use is as store of value, especially in time of crisis.
I agree with what you have said, that bitcoin and USD have different characteristics and cannot be equated.
if the matter of profit and loss between them is actually more risky with bitcoin, but if we understand and often analyze well, it is clear that the advantages of bitcoin are very profitable compared to USD. obviously long-term investment is better for bitcoin.
Bitcoin is not the best guidance during the crisis, because there are many negative factors, including how difficult it is to turn Bitcoins into real money.
Bitcoin is too risky asset!
I disagree with your statement that bitcoin is very difficult to convert into real money / fiat. now there are many conveniences available. the negative factor is the risk we want to invest. normal things happen as long as we want to analyze each action will surely be safe.