Out of the ones I've had personal experience with (actually shot them through an animal), I'd have to say the Wensel Woodsmans. I bought 12 this past year....and I sent a few of them through deer. All of them are still usable....and in reality would still kill, even after going through a deer. I re-sharpen them after they're shot, but it's probably not entirely necessary.

I'm going to get a few Silver Flames before I go to CO, this fall. I may change my tune on this, after I gain some experience with these. Time will tell.