My wife and I are building a new house. I am the general contractor and am trying to decide on the best type of insulation to use. I have read conflicting reports of the pros and cons of cellulose vs. blown fiberglass. Some installers are telling me 95% of builders are using batts in exterior walls instead of a blown-in material. Is there a straight up answer as to which type of insulation provides the best all around performance with the least amount of potential problems down the road?