The best I have found, and have been using the last two years, is a pair of victorinox 3.25" parering knives. One in serrated, one plain. They are extremely sharp with a few licks from a $4 pocket sharperner and are perfect for breaking down game. They just plain work at like $7 each. Made a sheath out thin disposble cutting board material from the dollar store. Much lighter than the packlite too. I dont use any of my expensive knives anymore in the field.
About a year ago Kuiu came out with a few fixed bladed knives that were very light ( and expensive). I don't know if they are still selling them or if Jason could put you in contact with the company the was actually making them for him.