A few brands make central air conditioning models that consistently receive higher ratings than models from competing brands. Some of the top-rated central air conditioning system models are manufactured by Lennox, Maytag and Trane.
Several review sites recommend models from the Dave Lennox Signature Collection. The highest-rated Lennox model is the XC21. The Maytag iQ Drive has received positive reviews from multiple sources, and the Trane XL20i gets a lot of top marks from consumers. The favorable reviews are due to these models' reliable performance, energy efficiency, length of warranty and quiet operation. Other brands with top-rated models are Broan, Carrier and Heil.