None of them. Get a Fallkniven F1. Nothing else is better for backpacking or survival. It is the perfect size, has a perfect sheath (Zytel), is the perfect weight, won't cause blisters or slip if your hand is wet, won't rust. It's the highest quality survival knife you can buy, period. You can spend hours asking why, or going back and forth reading or debating about other knives. Don't bother. When the poop hits the fan, you will understand why the F1 is king. Save yourself the hassle, just buy the F1, and move on to something else like getting your first aid, water, and fire making kit up to par. The only way you are going to do better than the F1, is to carry more weight. In that case, I would recommend a good medium sized Axe, and the F1. ESEE's don't push through wood near as well, and they rust, they have a great warranty. Bark River's are prettier, hold an edge slightly longer (almost unnoticeable) cause blisters easier, and also rust. I have knives from all three brands. Get the F1. Trust me. At this point, IMHO, it isn't even up for debate. It is the perfect survival knife.