I would like to read some opinions about slab on grade vs footing, block, and slab. The foundation co. that is bidding on my project is pushing slab on grade. The dirt looks to be like clay with medium rocks but I am no expert. The grade of the lot would look to me to be a 3 or 4 block high job as the back of the lot is lower. Any ideas on which is better for making it last for ever. Also I live in Arkansas where the avg night temps are above 32 in the winter most of the time unless we get snow which never lasts longer than 2 or 3 days on the ground. I have some building knowledge but cost accounting by trade. My gut tells me to stick with the block slab.