I dont get into anything bigger than deer or blackbear often, and for me Ive fallen in love with the Benchmade Flyway. Its definitely too small for moose, but for deer or black bear (short of the big ones) its perfect. I like knives with an upswept tip even though common sense says they paunch easier.
My second favorite is a Benchmade Meatcrafter 4". Both of these knives have very fine tips and are for slicing, DEFINITELY not prying. I can do a deer, strop it, and shave in 30 seconds after.
I used a Browning D2 trout knife forever, still have several spares in case I ever lose one.
On the razor blade knifes you buy new blades for, be careful. I had a razor blade detach from the handle in a mooses, uh, ummm.... where the brown pellets come out. Not at all a good spot to lose a razor blade.
Guys talking about steel are on the right track too. Harder steels like D2 are phenomenal for edge retention, but require diamond stones and strops. If you get diamond stones dont press hard or youll scrape the diamond particles off the base. Carbon steel you could sharpen on a rock and hone on the bottom of a coffee cup, but it dulls faster. Whatever you do look into strops for the final edge. I have a portable diamond stone in a leather pouch. The pouch itself is a strop and if I dull my knife I can go back to shaving sharp in a few minutes. Few swipes on the diamond few swipes on the strop