My wife and I make roast chicken first, then strip off the meat and boil the carcass, skin, etc to make soup stock. Strain, cool, and skim off the fat while leaving the connective-tissue gelatin and start soup from that. It's easier in winter - just lug the whole stock-pot out into the garage, cover, and leave it for a couple of hours.
When I roast chicken, I rub the skin with salt, pepper, smoked paprika, and sage, then roast it breast-down so the fats migrate down into the white meat and keep the breast moist. Generally flip that sucker for the last 20 minutes or so to brown the skin on the breast. Poultry is easy, and always good. For us, chicken soup is always a two-stage affair - roast a chicken first, and get the nice roast-chicken flavors into the soup in step 2. My mother and grandmother always did it that way - hard to argue with that kind of success.