Best size blade

[irish lager]

i try to keep my field knives around 3-4". i have found w/ that length i can perform any task and have plenty to hang on to.

I typically carry a folding knife and a fixed blade in the field. the fixed blade is anywhere up to 5" and the folder is usually 3-4"

for small game you really dont need much, i have a 2" blade folder that i use on squirrell and rabit with great sucess.
J