My area requires 400 foot pounds of energy sorry Left out information just your ordinary Whitetail deer nothing to 400 poundsThere is no "BEST". There are too many variables to consider, and my Crystal ball is out of batteries....
What caliber is legal to use, to harvest deer in your area? That is a good starting point.
What kind of deer? the Couse deer is about the size of a large dog, while a Mule Deer can be 400+ lbs.
We would love to help you, but we can't guess and give good information.