I'm a recent convert to the beer can chicken, and have done four of them in the past few weeks! Not only does it come out amazingly good, the real beauty is that you can get it going and pretty much walk away. Grilling cut up chicken is a pain, the fat constantly drips and flares up, and you pretty much have to stay within arms length of it for an hour. But with BCC, the bird isn't over the flames/coals, so there is no chance of flareup. After half an hour I just spin the bird around and close the lid for another 30 minutes. Then I loosely wrap some foil around it (just to keep the skin and extremities from burning) and leave it until my thermometer indicates 165°.
I dry rub the bird inside and out, and the can gets a few oz of homebrew, a couple smashed garlic cloves and whatever dry rub was left over. Use whatever you like in the rub...I like ancho and chipotle chile powders, onion powder, salt/pepper, along with light brown sugar or DME for some spicy/sweet action. Check my gallery for pics.