Without a doubt, I prefer simple systems, simplicity is easier to maintain, harder to break, and quicker to fix, a complex system might look good on paper, but in real life, complexity is the enemy of consistency, the more moving parts, the more places where it can fail, furthermore, simplicity is usually more adaptable, when the algorithm changes, a complicated system falls apart, in contrast, a simple approach allows you to pivot quickly and try new things without having to rewrite half your strategy, flexibility is key in digital marketing because platforms are constantly changing.
That doesn't mean making things simple is easy, on the contrary, simplifying requires more effort than complicating, anyone can add extra steps, making something work well with just a few elements requires truly understanding the problem, so yes, I always choose simplicity, even if it takes more effort to get there.