Which is better, Behr or Rustoleum?

Which is better, Behr or Rustoleum depends on product category, as Behr is primarily known for house paints for walls and exteriors, while Rust-Oleum is known for primers, spray paints, and specialty coatings for metal and specialty surfaces, so they excel in different areas. For interior and exterior wall paint, Behr is generally considered better than Rust-Oleum's wall paint lines, as Behr, sold at Home Depot and made by Masco, consistently scores higher in Consumer Reports for hide, washability, and durability, with lines like Behr Marquee and Behr Dynasty offering one-coat coverage and good mildew resistance. Rust-Oleum's wall paints, such as Rust-Oleum Chalked and Painter's Touch wall paint, are decent but not as well regarded for large wall areas. For primers, Rust-Oleum, through its Zinsser brand, is considered far better than Behr primers, with Zinsser BIN, Bulls Eye 1-2-3, and Cover Stain being industry standards for stain blocking and adhesion, outperforming Behr primers. For spray paint and metal protection, Rust-Oleum is clearly better, with its Stops Rust and Professional lines being best for metal, automotive, and craft projects, while Behr does not compete in spray paint. For cabinet paint, Rust-Oleum Cabinet Transformations is popular, while Behr has cabinet paint. So if painting walls, Behr is better, if priming tough stains or painting metal, Rust-Oleum and Zinsser are better. Many pros use both, Zinsser primer plus Behr topcoat.