I will not prefer any of the given trade option in statement because we can't predict price of crypto because we don't have control over demand and supply of asset. Trading is all depend upon the situation of the market. for example if there is bear market conditions than we must do weekly trading or 3-4 day trade. Doing long trade is not worth because of uncertainties in the Crypto world. Likewise last year there was prediction that bitcoin price could go to 50000 usd by end of 2018 but results in front of your eyes. That's why i would not do long trade.
For me, both variants are accepted. You can simply use it in different periods. When the market is falling, it is better to hold or deal with the long-term trading. When you work with cheap alts, short-term trading is good.