I have used two different sets of quad sticks, and each set has it's own pro's and con's. I believe it is up to the individual to see what features work for them.
1) Blaser. Carbon fiber which makes them very light weight and sturdy. They are very easy to adjust in height, but, what sets them apart from the rest, is the front rest. The blaser quad sticks have a proper grip that you can grasp onto, and by twisting your wrist, you are able to somewhat direct the front of your barrel either left or right, allowing you to follow your quarry, without having to move the sticks, or to lift and reposition the front of your rifle.
2) 4DeadHold. Ther front rest is wide, which allows for some movement to the left and right. Lightweight, and very easy to use either standing, kneeling or sitting. The legs have height indicators on them which makes it very easy to adjust to the correct height when sharing. the height adjusters have proper flip locks, which is easy to grip even when wearing gloves.
.....you are also able to place a double rifle on the front rest, and still retain the capability of moving the barrels left or right.