NOT AN ANSWER
This is not an answer, its more a praise to an unsung facet of the genius of a much celebrated architect. The title of the question (minus the word control) reminded me of an experience I wanted to share (which is relevant is a very generic way).
When I visited Barcelona (sometime in the previous millennium), I had already a few years of experience in numerical methods and Finite Elements. I had the chance of visiting one of Gaudi's museums. What really impressed me at that point (and in many ways humbled me afterwards upon reflection), was looking at a relatively small corner something like this.
Until then, I had not read or heard until then about Gaudi's, and its use of strings (I was and in many ways still more attuned with digital tools).
Upon reading closely on the exhibit's tag, I realised that this was a way of predicting what is best way to use material in order to maximise the structural performance. I.e. someone was using string, balls/masses and gravity as a an analog computer to optimise and at the same time give shape to a structure the size of a cathedral.
So probably to to me that is the best example of a rudimentary (I would never describe it as classical because I've never actually seen it since or heard of it being used), that I would be certain it performs better that any of the "modern" alternatives.
rope, weights and gravity.