HPs- Open quickly, deliver energy in a very short distance. Pros- For thin-skinned or lightly built animals or small game, it will cause rapid delivery of energy and often stop inside the animal. Cons- rapid expansion causes extensive tissue damage, HPs do not penetrate deeply so they may not make it to the vitals from some angles.
FP- Good for medium penetration. Pros- Good for medium game, can penetrate to vitals from extreme angles, typically penetrates completely leaving good blood trail. Cons- May overpenetrate causing secondary damage to other animals behind the target.
Keith style- large flat point delivers energy well, but little expansion due to harder lead. Pros- good penetration on heavier game animals, usually penetrate completely leaving a good blood trail. Cons- be careful what is behind your target, not jacketed so they may cause barrel leading.