Pretty much any brand is fine on the back...
Don't cheap out on front pads... they do 80 + percent of your braking ...
Ford Edge has 4 channel ABS with 4 separate channels, not just front and rear. And it can modulate the brakes to each wheel individually. I do know the rear brakes wear out faster than the fronts (also happening on other brands, not just Fords), but it's not a simple front/rear bias. It also has electronic brake force distribution which means the actual bias front to rear is always changing, depending on how hard you press the pedal. It starts off fairly rear biased on light braking, then builds up more pressure in the fronts as you brake harder. Of course once you're into ABS, the actual bias can be anything depending on the traction available.