ORIGINAL: quiksilver
I'm always well into the 70-80# KE range, so I'm more or less just looking for a head that won't dissintigrate or plane all over the place. It could be duller than a butter knife, and will do the job just fine.
Accuracy
Durability
Sharpness
That's how I prioritize my broadhead analysis. Our deer around here aren't particularly huge, and I think I'm putting out enough KE to hunt Buffalo. Obviously, the farther you slide the KE number down, the more emphasis it places on having a razor sharp head. Durability isn't as much of a factor for a guy shooting 50# of KE.
You've got to be kidding right? Broadhead sharpness and KE have NOTHING to do with each other. I don't care how much KE you're shooting you need to be shooting the sharpest broadhead you can. Dull broadheads don't cut, they plow and they'll plow elastic veins and arteries right out of their way without cutting them. You need a sharp head to make a quick, humane kill, unless you're going for a head shot...[:'(]