I use a traditional wet/dry stone for kitchen knives. I also have one of those fancy things with the long rod that you clamp different stones onto, and it works great, but as said above it takes too much time. Honestly for most of my knives I tend to abuse the heck out of them, at least the one I carry daily - 90% of the time I'm opening boxes, cutting garden hoses, or other rough stuff like that, and I've just found over the years that I'm not the "scary sharp" guy. I'm the "pretty sharp in 10 seconds, what the heck you're just going to run it through some cardboard in an hour anyway" guy.
That said, for field dressing I was a big fan of replaceable blade knives, but I always break the blades. Again, I'm no surgeon. I haven't had a chance to try it yet but this year I got the Havalon Talon. Any of you guys that are heavy-handed like me should check this thing out. It's replaceable-blade so it's always surgery-sharp, but with two big differences. First, the blades are MUCH thicker so you're not going to break them. Second, the blade replacement is much easier, especially with messy, sticky hands.