ORIGINAL: Howler
1" sharp blade will do better than a larger dull blade. Make sure the blades are sharp, no matter what broadhead you use. Even after you shoot your broadheads into your foam target a couple of times, you should touch them up with a stone to make sure they are razor sharp.
Amen Howler, but I'll go one step more, if you shoot a broadhead ONCE, it's done unless you touch it up or change the blades. One shot and done no matter what, touch them up or change the blade, there is no excuses.
Obviously the number one factor is shot placement, every broadhead on the market will do the job when shot in the proper place. As to the orginal post, the Rage actually leaves a bigger than 2" entrance hole due to the way it opens at impact. I've seen holes as long as 3 inches cutting diameter with my 1.5" Snypers.