Which do you prefer and think is better
For me personally with the real life workload, for most of the case I don't have time to do day trading where you constantly need to check the chart of your assets regularly to make sure everything is under control. With that hassle, doing long-term trading and in my case DCA is the best and comfortable strategy for me because it requires little to no effort to check and you can forget it for few years and grab more if necessary.
Yeah right, if you don'thave time to keep engaging yourself and monitoring how the market behaves then better to use that long term investment style, just buy and set your target and leave the market, you only need to monitor once the market is on its way pumping just to check if you already reached your target and collect the earnings that you think is managable to earn.