My suggestion...get the largest one you can for the space you have....
. I've had top freezer, bottom fridge; French door; side by side. For a while, the side by side was my favorite. The narrower freezer wasn't a problem, I had an additional freezer. As I said, the side by side was my favorite until we had a party with about 55 guests. Fridge too narrow to hold trays easily. Freezer too small to hold bags of ice. Also, we now buy lots of produce from the Farmers Market at Brownwood and find there isn't enough space. Think it's time to go back to the French door fridge. The one I was looking at has a sliding shelf and drawers in the freezer section....quite different from the one I had about 8 or 9 years ago. Also has lots of compartments in the fridge for produce.