I voted Garmin, because it's the one I use, and I am extremely happy with it. It does everything I want, plus more... and is extremely easy to use. It has a large touch screen, with no need for other buttons... the screen takes up the whole unit, which makes it easy to read. And by simply plugging it in to my computer, I can load teh locations of speed cameras, red light cameras, school zones... although I have since deleted school zones... never realised how many schools there were between home and work, and the warning isn't time dependent. I can also use it for photo slide shows or as an mp3 player. I'm sure many of the features are available in all the other brands. My girlfriends dad owns an autobarn store, and he highly recommended Garmin over the other brands... hopefully not because they have a higher trading margin... haha.