I think a lot of bowhunters put way too much emphasis on cutting diameter of broadheads. I don't suggest trying it, but if you put a field point through both lungs, a deer wont go far. Those huge expandable broadheads are a recipe for poor penetration. Of the broadheads mentioned, slick tricks have a track record for flying extremely well and making pass throughs. Montecs fly well and are tough as nails, but the general consensus is that they don't necessarily leave the greatest blood trails - mostly because the blade angle is more like a knife than a razor blade or scalpel. My personal favorite is the Magnus Stinger. I'm currently using 125 grain, 4 blade Buzzcuts. They're super sharp, fly like field points, and come with an outstanding warranty.