I dont monitor my cadence as much as most might, but what I can say is that my cadence is not averaging above the 70. However, my hill climbing is good & I don't find myself needing to spin in the creeper gears like most.
Essentially, if you have the leg strength, you could power up the hills at a lower cadence rate as that is what I tend to do. If you're going for a longer than normal climb, then a higher cadence might be more beneficial than shear leg power. To me, having the torque [leg power] is more important than horsepower [cadence]... just work on endurance to help achieve the sustained torque needed for those climbs.
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-YMMV