Here's my two cents.
I have a French door fridge with bottom freezer and love it. Maytag is the brand. I bought it at ApplianceSmart in Rochester before they closed their Minnesota locations. They have excellent deals. Only location left is in Columbus, Ohio.
Side by side units have significantly less storage space than over under units as there is about twice as much space separating the fridge and freezer. Although, side by sides make it easier to find things, especially in the freezer, as things don't get buried as much so there is give and take there.
My parents bought all kitchen aid appliances when they built their house 12 years ago. And they have been very reliable.