Brine a bird and you can cook it anyway you like. I have cooked whole birds, pieces, halves, spatchcocked, you name it. Juicy and flavorful. And I'm from Texas, so in our comps down here, typically you cook fully jointed, chicken halves. I have had solid success with 2 methods, first is brining for 12-16 hours (water, kosher salt, sugar, brown sugar, my rub, apple juice), mixing Parkay squeeze with some of my rub, rubbing it under the skin (I also pin the skin back to cover the meat fully with toothpicks), then smoke for about 2 hours at 250 until IT reaches 170 in the breast, then I baste the outside with sauce or a glaze and put back on the pit for 15 minutes or so to let the sauce set. But I have also enjoyed the results of cooking the chicken in foil pans in a butter bath, put the halves skin side up in foil pans (I use the ones that 2 halves fit into pretty good, can't remember the size, maybe 9 x 11 or something) then throw stick of butter in there with them. I do everything else the same, brine, butter/rub mx, 170 IT in breast, etc. The texture of the chicken after a butter bath is incredible, tender and juicy, but the downfall I see to butter bath in pans against just smoking is you lose some of the smokeyness to the meat, since the bottom exposed meat is getting no smoke, only butter. I tried this past weekend smoking for 1 hour, then into a butter bath for the last hour, good results, but nothing definitive yet, I need to play with it some more, may try it in reverse, butter then smoke. Neither way produces crispy skin, but the skin is bite through without a problem. Most guys in comps grill their chicken instead of smoking, but I have gotten a call in every comp so far smoking my chicken, so I'm sticking with what works.
See some of us Texans know how to cook a good bird!