I agree with the above posters. There are so many other options beyond burgers at the CS locations. The problem you might find is getting burgers for the kids. Most places do not offer a kids burger option. One of the places that does (weirdly enough) is Tangeriene Cafe in Morroco in EPCOT.
If your kids are "kids" for purposes of the dining plan (you didn't mention if you were going to be on it), they will have to choose from the kids menu. However, if they are over 10 on the DP or you don't have the plan, then of course you can choose whatever you want for them.
Our favorites are Columbia Harbor House (the fish/chicken strips are excellent), Cosmic Rays (love the wrap sandwich), Wolfgang Puck Express (in DTD, what a find and the food is excellent), Casey's (when you're just craving a hot dog).
You can certainly find a wide variety of options beyond the basic burger at the CS locations.
ETA: OMG...I've hit 1000 posts. A new milestone!!!