I chose my local
brand after being in business for 15 years. Brand A,B,C has no parts support, their warranty policies suck, however, brand D-warranty is good(and I am not talking about consumer warranty-DOA) and it's all local.
Back when I started I would put any manufacturer you wanted in your house. Today...I know who is going to support me as a business and If you want a Trane, Rheem, Ruud, Goodman, American Standard or any other brand that is not well supported in this area...good bye....Other than parts I am not going to deal with them. Especially Trane who thinks their stuff is gold plated.