I dislike folders for carcass work so I generally carry a German made fixed blade Linder, either the bottom knife in the pic below, which I is in 440C or the Super Edge 2 which is a essentially the same knife in ATS34 steel and with a synthetic handle.
The other knife I have started using which has turned out to be very handy is the Mora Roeing knife below.
Its cheap as chips but the small blade takes an excellent edge and the ball tip makes gralloching, and the initial cuts when skinning, a breeze.