Aera 500, although I was sad to give up my Lowrance Airmap 1000 due to them stopping map updates. (And the screen failed shortly afterwards.) lovely bit of kit.
But my next gps will be Skydemon, I think, probably on a dedicated cheap Android tablet not my iPad (which is 9.7" and too big). I went for Garmin because of the OBS hold mode but truthfully I don't use it all that often.