Sorry to revive the old thread but i find the quad to be perfect. My truck is not used as a daily people hauler and the available rear seat room is quite adequate in my experiene. For a large adult the rear seating area in the majority of passenger vehicles is going to be less than ideal anyway so why shoulna truck be any different?
The quad cab is the perfect compromise between bed size and knee room for rear passengers. As i said it is more than adequate in real world use. Plus quads look better in my opinion. So there