RE: Axle to Axle length and Brace Height?
Forgiveness more than TRUE accuracy. If you have GREAT form, you will shoot a short bow just fine.
For hunting, I DON'T like too short of a bow, because you will often be in an imperfect position to shoot....that's where the forgiveness comes in.
I think brace height is most critical when considering follow through. and ATA when considering stability.