I really admire craft knives, but I am the son of a butcher so although I have some nice knives, I don't use them very much.
My dad used Forschners, so that's what I use when I butcher game. They are quick, light, sanitary and relatively soft steel that you can get really sharp with only a few strokes of a steel which I do throughout butchering.
When I'm hunting I go with the same philosophy. I carry a Fiskars Hunter fixed blade (now the Gerber Gator I think, a drop point for under $30) which is very light, commercial ugly, relatively soft steel and has a soft commercial style synthetic handle. I also carry a small take-down diamond steel.
I also carry a Browning Kodiak folder ($60) primarily for the skinning blade which is great for the first abdominal cut. It is also synthetic (Zytel, aka cheap-feeling plastic) and unfortunately camo (I wish it were black or even orange.) But again, it's very light. It also has a bone saw blade that I thought I'd never use, but it does come in handy sometimes.