For a durable sharp edge on your hunting and outdoor knives you should maintain a 25* angle. I use a Lansky sharpener for this with excellent results. If you want a razor type edge for you edc pocket knife the Lanskey will allow you to put a 20* edge on the blade. But be careful, at 20* you make the blade susceptible to rolling the edge if used for every day use.
I agree with the Lansky sharpener, but occassionally use a ceramic stick set I got from A.G. Russel to refresh an edge quickly. But then I like the Ken Onion work sharp system and Arkansas stones too! Everything has it's uses.
I'll start looking at the Lansky sharpener. I'm not looking to get a shaving edge on the new blades but they aren't exactly what I'd call sharp.
Some of the Kershaws I've gotten recently were definitely sharper out of the box.