ORIGINAL: Rack-attack
A doe old or not is easier to kill than a mature buck, period.
A doe will not go nocturnal - she is hampered by yearlings - they are hungry thay make mistakes - she has to deal with them - she moves much more - and in a more regular pattern.
A mature buck is a loner - he does what he pleases - Yes he makes mistakes at times - and can do some dumb **** - but generally they are much more stealthy.
Mature bucks IMO are super paranoid and on edge - Like a bunch of Coke addicts running around thinking the Government is after them
You've made some very good points. I believe that a mature buck, 4 1/2 years and older, is the hardest deer to kill. Super old does are very sharp, but they have one thing going for them. I believe that more often than not, does are passed on, whereas mature bucks are not. In short, I think that whatever has been shot at the most will be the most wary. Bucks are the most sought after deer so it makes sense that they are harder to kill.