You couldn't pay me to take a side by side but the french doors seem really nice. I bought a new fridge last year. I desperately wanted the bottom freezer and I love it. I opted for a regular door for the simple reason that I could store more in a regular door than in the french doors - like big milk cartons, etc. - it just seemed like there was a little more storage space.
If you get a bottom freezer you will not have as much freezer space as a conventional top freezer so pay attention to how it is laid out. It took me awhile to figure out the optimal use of it.