Gaffrig is one of the original aftermarket marine companies. Their gauges where assembled and made under their name by Mike Livorsi. They make their own gauges now and are independent of any else. When Mike lost the rights to the Gaffrig name he started a new company, Livorsi. Livorsi assembles their gauges in house but buys some parts from Autometer. The Livorsi line has a couple features that Autometer doesn't, not to mention a whole lot more choices of colors and rim styles. Autometer makes and assemble their own gauges.
To answer your question, they are all high quality pieces and the companies stand behind all of them. You won't go wrong with any of those brands.