I guess that kinda depends on what kind of gun you are shooting, and what your intended game is. For deer/hog hunting with traditional cartridges such as .30-06, etc., I like targets with squares, kinda like "Bullseye with Grid." I like being able to try and line up the target lines with the reticles on the scope. This is difficult because the reticles are black just like the lines that make the squares, but on the scopes that I have that are illuminated, whether red or green, it becomes very easy.
Zachary