I've historically carried a 3 - 3 1/4" drop point of some design or other. I've used a bunch and the only trouble I've ever encountered was hand fatigue when boning out an elk single handily with too small of a handle. Seems of late one of Tim's B&Ts is most often found in my pack.
I most commonly carry a folder, 3 5/8 overall, and a fixed blade in my pack. For deer and antelope I grab one and do the entire job. Elk get to see all my knives - one cuts hide and the other meat.
