Short term wise, Price action is the most effective at least for me since you can guarantee the direction will just follow the heard. I always set take profit and stop loss when trading this way while occasionally adjusting my stop loss whenever the price keeps going the positive side of my trade.

Indicator is very useful for long term trade since it can give you a general outlook for the potential outcome of the price through the price history since crypto trading just repeat itself every cycle.

Both indicators and price action has their own merit so there’s really no better in general since they different use.