Is A. O. Smith a better brand than Rheem?

Is A. O. Smith a better brand than Rheem depends on product, but both are top water heater brands in USA, with A. O. Smith often considered slightly better for build quality and warranty, while Rheem considered better for value and features, both good brands. A. O. Smith Corporation, founded 1874 in Milwaukee, Wisconsin, USA, makes water heaters, with brands AO Smith, State, Lochinvar, known for high-quality commercial water heaters, with good warranty, durable tanks, and commercial-grade build, with tankless models made by Takagi partnership, averaging 4.4 stars, costing $500 to $2000, with longer warranties up to 12 years. Rheem Manufacturing Company, founded 1925 in California, headquartered in Atlanta, Georgia, USA, makes water heaters, HVAC, with brands Rheem, Ruud, known for innovative features, smart water heaters with leak detection, good value, averaging 4.3 stars, costing $400 to $1800, with good energy efficiency. For tank water heaters, AO Smith considered slightly better build quality and longer warranty, with commercial grade, while Rheem better for smart features and price. For tankless, both good, Rheem has more models, AO Smith tankless made by Takagi. So AO Smith better for commercial and durability, Rheem better for value and features, both top brands, with AO Smith slightly better for premium quality, Rheem better for value.