John,
Both companies make other models that would be more appropriate for your needs, IMHO. Especially if you are considering field-dressing a smaller/medium animal like deer. Having field-dressed and processed countless large (moose, caribou, elk, deer, African game, beeves) and small game in the field, and in the butcher shop here for cutting and wrapping, it has been my observation over the years that most of the knives taken to the field for field-dressing are much too large and thick. IMO, the two knives you mention qualify on both accounts. If the two knives mentioned (I have used both) are to be used for military or survival application, I say fine and dandy. Still, personally, I much prefer the more efficient, easier to maintain thinner blades for camping, woodcraft, survival, eviscerating and disassembly of game, and general utility use.