It depends on the context)

Experimentation always show the truth ;)

Experiments are part of the strategy :)

Why create a false dichotomy? Strategy tells you where to experiment.

Ideally, you need both (start with a solid strategy and continuously experiment to refine and improve your approach based on real-world data)

Strategy says, 'I have a plan,' and experimentation replies, 'Hold my drink.' Without experiments, strategy is just guessing, and without strategy, experiments are just chaos. The key? Knowing when to stop experimenting before your 'plan' turns into wild guesses held together by caffeine and hope.

Strategy might edge out because after experimenting it's essential to have a game plan to maximize your impact.