well, the October issue of CL had a little primer about poultry and said that broiler-fryers are about 7 weeks old and weigh 3-4 lbs and they're good for making stock, but they're not as meaty as roasters. Roasters are 3-5 months old and weigh 4-7 pounds and are good for baking because they have a higher meat-to-bone ratio.
That being said, I bought a Perdue Roaster last week and made sticky chicken with it in the crockpot and it was WONDERFUL!! It was a full 7 lbs and very meaty. Three of us ate the original sticky chicken, the next night I turned it into burritos for the three of us, DH had a chicken "snack" for lunch the next day and there's still a drumstick left. And that's after discarding the wings, because no one in the family likes them!
The Perdue Roaster was on sale at the store last week and my Sunday paper had a $2.00 coupon to boot. An excellent value. (Sorta makes up for some of the more outrageous CL recipes I try!)
Hope this helps!
"I cook with wine; sometimes I even add it to the food."