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