I dunno... seems like most SAK users prefer a model with regular-size handles. Recruit, Farmer, Camper, etc.
This is my situation actually. The only SAK I've ever owned, is the Alox farmer I got few years ago (still have it). I've seen people with the SAK classics of course, but I've never owned one, or gifted any of them. But I'd have thought that the larger ones are more popular around here, but as its been pointed out, "popular" doesn't mean "most populous" at all.
Interesting question.