Per our charter, we cannot comment on particular products or brands. Most manufacturers make a range of qualities (1st, 2nd, sometimes 3rd ) of paint for a given type (e.g., interior flat latex wall paint), and generally provide an excellent product with their top-line item. As for which is "highest quality", it would depend on your perspective, in that paints are evaluated on many properties (hiding, burnish resistance, flow & leveling, sag resistance, block resistance, adhesion over various surfaces, etc., etc.). Thus, each paint product has its own particular balance of properties, and it would be impossible to say which is best. In general, you won't go wrong in going with a top-line product from a given manufacturer or retailer.