Rule 1 = all deer are a trophy.
Rule 2 = the deer that's bigger than the last
Rule 3 = the deer that was the hardest to hunt
Rule 4 = the deer that combined rules 1 through 3
Rule 5 = the deer you remember the most.

The memory of the first deer I took (doe at 11 years old) is more vivid in my mind than my biggest buck.