I think what constitutes a good burger depends on one's experience. Those who were raised on good homemade burgers (or who figured out how to make good homemade ones) are going to prefer homemade or restaurant burgers that are similar to homemade. Those who were raised by parents who made charred hockey pucks of meat are probably going to go for the consistency and predictability of a national chain. My parents made meat hockey pucks, so until I was old enough to make my own on the grill, I preferred national chain burgers. Now that I've mastered the technique of grilling, I prefer homemade. My son has been raised on my homemade burgers, and won't eat restaurant burgers at all.
I'd say most of the options here have burgers that taste pretty similar, the difference being the size/shape of the patties and toppings/condiments being different. For example, In and Out Burgers taste pretty standard, but what sets them apart for some is that hipster element of the "secret menu."