I use one of these for everything from Muntjac to Sika:
Fixed Blade Knives: Boker Arbolito Relincho Madera --- Heinnie Haynes - Knives, Pocket Tools and Accessories
Its an excellent knife. Cannot fault the build quality in any way, its light with superb edge retention. When I find a folder blade made from this steel I'll buy it. The blade length is ideal for larger deer while the slender profile makes it equally good on smaller species and fiddley jobs. This one is definitely a keeper.
Boker knives are top quality. The Arbolito "Tree-brand" knives are made in Argentina. They're cheaper than the German models but definitely not nastier. The Argies make fine knives and their leatherwork is top notch. I would say you could buy with confidence. The blade edge on mine wasn't polished when I got it. It was razor sharp but I could feel machining on it. All it took was some light stropping to get it silky smooth. I've had it two years de-heading and legging in the field and I've only sharpened it once. It makes my old EKA swingblade look pretty sorry in comparison.