I don't use a large sheathed knife to dress out big game. My knife of choice is the Buck 110 folder but feel the version I got for about $69.00 from cabelas is the best edge I have ever had on a knife. It stays sharp and is real easy to touch up using a small hand sharpener.

http://www.cabelas.com/cabelas/en/templates/links/link.jsp?type=pod&cmCat=MainCatcat600798&i d=0027310