Love these kinds of questions. Voted in the poll the best I could, but there wasn't an "All of the above". I'm a tool junkie, used to be owned by the Snap-On dealer....the right tool for the job is a pleasure to use. I study long and hard on tools, it's my job, my business to.
I've carried folders but carry a fixed right now mostly because they are just easier to keep clean, no surprise chunks of whatever falling out from last week's job. (currently a helle a friend made me, works great Steve! the more I use it the more I like it) That is my main camp tool and skinner. Everything from spreading peanut-butter to slicing apples to skinning work. That knife is always on my person. The rest of them normally live on the pack in my "Kill kit". Over the years it's become a system to me.
Once the hide is off a 5" straight semi flex forschner boning knife makes quick clean professional work deboning. IMO once you've used one on an animal in the field everything else seems like you're fumbling around and "making it work". Converted 3 or 4 guys to them now, "here, put that away and try this...". A good kitchen or filet knife as well.
I always carry a havalon in my pack and really like them, but normally with the small blade (22?) and mostly for caping work. Just don't care for them deboning and such. But always have a few of the larger blades just in case. Honestly I use it as much in bird season pelting pheasants as I do on big game.
The multi tool I either have in the pack or on my belt, camp hunts usually on my belt. They are so handy and when you need a tool like that, you NEED it. Seems the guys I hunt with need it a fair amount too.... I cannot recall a major trip where I have not used each and every tool. All my camp has to fly, has to fit into a bowcase and a small cooler all under 50 lb each as luggage and a pack for carry-on. I save weight and space in other places, not in the tools I may need.
The minimalists will sneer at all the tools, but I'll normally carry a small folding duo diamond sharpener (works on broadhead touch up) and a wy saw in the kit as well. But then I'm usually the one the minimalists go to when something goes wrong. =D