I started out in cloth, and have lately returned to cloth, however the diapers I've worn the most--averaging over all of my DL years--would certainly be Pampers. As a tween in the late 80's, I made the switch from Curity baby prefolds to Ultra Pampers, then Pampers Phases, etc., etc., and still use Pampers Baby Dry and Cruisers from time to time. The "fit" is certainly less than ideal, but the babyness is tip-top. Unfortunately, they've lately gone the way of Huggies and removed the scent that was always such a... *blush*... turn-on for me. It may take a while before I really warm up to unscented disposables.
In the meantime, my use of prefolds--including my old Curitys--has returned to pre-Pampers levels. To re-answer the question with only the last three years in mind, I would say: Cotton prefolds. My favorites are the Changing Times adult prefolds stuffed with either vintage Curity or modern Green Mountain toddler prefolds, fastened with either diaper pins or Boingos, with vinyl pull-on pants on top.