There are many people who over the years have come to favor one component manufacturer over another. They buy the products as a first choice and compare everything else to these. They set up websites, discussion forums, and trade technical details about used components. Some popular manufacturers that come to mind are Krell, McIntosh, Levinson, PS Audio, Linn, Bryston, etc. If you had to choose one company who's products you would "specialize" in, which one would it be & why? Any manufacturers to avoid?