For me a higher cadence of 90-95 is ideal due to a bum knee. If I try to lug it out I put too much pressure on the joint causing discomfort, swelling, etc... When hill climbing I try to stay in the saddle as much as possible and use as many gears as possible. A total knee replacement is in my future but the doc says that I'm too young to have the surgery now, so I will have to keep on spinnin'.
Now that I think of it how come everyone else reminds me how old I am but the doc?