Go Garmin
Having been a long time navigator (since before gps) by means of terrain association, aerial photos have almost NO worth to me. You can't get a good idea of contour interval from a picture that has been taken from outer space or even if from low altitude especially if you are navigating in an area with heavy tree cover. For me the ability to upload a 1/24,000 topo map is really key.
I would HIGHLY recommend ANYTHING by Garmin, if for no other reason than that I am extremely confident that they will be around twenty plus years from now which in the world of tech and electronics I can't say about a lot of the others.