Check out the Spyderco Native at Walmart. I took the clip off mine and use it as a more traditional pocket knife and it would be great for hunting or general cutting chores. It is large enough to put a lot of pressure on it if necessary when cutting, small enough for the detail work such as field dressing a deer, and fits in the pocket nicely. Walmart has a fairly large selection of Bucks and Gerbers typically. Have used the Gerber Gator in the past. It is a knife I use when I don't care if I damage the blade.
I also sometimes carry a Remington Bullet knife. It has field dressed my last two deer. Almost any Case that fits your hand will be good too in a canoe or skinner type design. Lots of choices, but I would look at the Native before making a decision. They run about $40.
Other possibilities include a Swiss Army knife (SAK) such as a Tinker ($16-$20). It is a bit small for hunting. I like the Soldier model ($20). Good size and flat in the pocket. I carry the larger Locksmith SAK daily ($40) as it is good for many day to day chores. I generally don't use them in a hunting situation though, but they would work just fine.