Who made a better engine?
It seems that the Duratec is found in more vehicle lines and was advanced for its time.
On the other hand, the Mazda KL (in 1.8, 2.0 and 2.5 (warm cam and hot cam)) forms seemed to employ higher tech, like a two piece engine block and a Porsche inspired intake. Plus, it sounds really good in the Ford Probe.
Which one is the better engine and why?