"Best" is subjective, but I'll tell you what I did for the rack I smoked on Father's day:
Prepare the fire for your smoker. Get the temp between 250-275F and maintain it throughout the cook. Once the desired temp is reached, throw some wood in. I used a blend of oak and apple wood for the rack in question. Don't forget the water pan.
While the smoker is getting to temp, get the ribs ready. Make sure your rack of ribs is thoroughly trimmed and remove the membrane from the underside. I coated the ribs in a little canola oil and seasoned with salt and pepper exclusively. Be mindful not to over-salt the ribs. A 2:1 ratio of pepper-to-salt seems to be the ticket. I like my pepper on the coarser side. It's not good for you as a man, but great for your taste buds.
Once the smoker was ready, I threw the rack on and made to sure to place it about as far away from the heat source as I could get it. Once it's on, you just need to be neurotic about the temperature and maintaining a clean fire. Shouldn't ever have thick clouds of smoke billowing out from the chimney. Try to maintain a thin, blue smoke as best as you can.
As for the cook, I like the 3:2:1 approach. 3 hours unwrapped and exposed to the smoke, wrapped in foil/sprayed/sauced for 2 hours, and unwrapped with a final mop of sauce for an additional hour. I actually used Sweet Baby Ray's for my ribs as well, but I doctored it up with apple cider vinegar, a bunch of black pepper, and some water to thin it out and make it more of a mop sauce than a syrupy/tacky one.
I used a completely different recipe for the rack I did before the one in question, but I figured the above recipe is simple enough and a good riff off of what you're working with.
Post pics of the final product!