I have used many knives for hunting but i always come back to my Grohman kit knife. I bought it from Lee valley and made my own deer antler handle. I then ground the blade down lightly to make a more steeply angled edge. I find this knife is just the right compromize for hunting. It's not to heavy or large. the tip does'nt have too sharp a point for skinning and the knife is strong and simple so it won't fail like a folder can.
My backup for choping bones is either an original Carbon V Cold steel Kurkuri or a Swedish hatchet.
Oh and i always keep evrything scary sharp with my Lansky sharpener.
(hard Arkansas in the field).