For purposes of a purchase of laptops for everyone in my small (15 people) organization, I have compiled a spreadsheet containing what I think is an apples to apples comparison of the cost of, among other things, supporting those seats.
I am trying to put values into fields that represent a) the number of hours per mac per week, and b) the number of hours per PC per week, that I will be spending supporting users and machines.
If you've had experience with both, I'd be curious to hear your estimate of the ratio of those two numbers (0.75? 1.5?).
I do realize that all other things are never equal, of course, so I'd be curious to hear your reasoning, and/or particulars of your environment, users, skillset, staff capacity, etc, as well.