In the early 1900s in the Midwest , the only thing that limited the final shape of the [poured concrete] foundation was the design of the wood forms that held the wet , plastic concrete that was placed in them. Concrete block didn’t require any forms to be built. A block foundation contractor that had enough masons and hod carriers could complete a large foundation in one day. It was a revolutionary building material.
You can build a concrete block foundation that’s stronger and more durable than a poured wall as long as the block foundation has lots of vertical and horizontal steel in it and the void spaces in the concrete block wall are filled with pea-gravel concrete. On the other hand , a poured concrete foundation can be formed and poured on the same day.
Although your decision will be based on a cost comparison , but both the concrete block and poured walls need to have the mission-critical steel in
them and to be designed correctly so you can compare the real cost between the two.