I believe that those of us involved in the field of cryptocurrencies should feel compelled to act in accordance with our ideals and therefore, we should prioritize the accumulation of bitcoins before the accumulation of dollars.
We must always keep in mind that one of the reasons that led to the emergence of cryptocurrencies is the search for alternatives to fiat money, therefore there would be no reason for us to exchange our valuable cryptos for centralized money.
I think that depends on how we need, if we need a sudden use on the money and don't wanted to wait for any more profit, then exchange them into dollar can be the choice, but if we wish to get more profit, then choosing btc would be the perfect choice.