Garmin vs. Raymarine - opinions from users?
I have both Garmin and Raymarine stuff on a 65-foot ULDB. If you are integrating knotmeter, windmeter, depthsounder, and repeater displays, I would recommend Raymarine, as they make all of that gear, but Garmin does not. Raymarine chartplotters will display all info from all those other transducers, and everything talks to everything else, and pretty much anything can be displayed anywhere. For example, I can display depth info on my autopilot display, and show any data or combination of data on the repeaters, and the autopilot receiving wind data can steer to a specified wind angle.
Although NMEA sends some data, there is a lot of info that it does not send, and having everything speaking the same language is a plus.