In reply to Captain Solo:
It would certainly be interesting to have an algorithm which could interrogate UKC logbooks in order, for instance, to track the number of times a given route was climbed in a year versus number of times any Scottish winter route was logged that year. The sort of pattern I expect you'd see emerging would be that, in leaner years, certain popular routes would, relatively speaking, become even more popular, these being the ones that are most often climbable (if not most often enjoyable!) so the likes of the Ben and Glen buttress/ridge routes and the big, reliable gullies, plus a fair bit of Sneachda mixed. Whereas, in good winters, the sought-after less-often-in routes will get lots of traffic.