What an interesting question.....

I own 10+ (if you count those currently on order or being built....) they are

SWK Standards - Black Stewart, Irish National (not reallyu worn any longer, going to my nephew.
SWK Heavy weights..... Leatherneck box pleat, Weathered Lamont Varian, Black Watch Variant
13oz Handsewn - Mackinnon Hunting Ancient
16oz Handsewn - MacKinnon 1842 variant
16oz boxpleat - Isle of Skye
16oz boxpleat - MacKinnon Modern red (with Matt being constructed)
16oz Handsewn - Xmarks (with Barb)

I wear these two or three times a week, on average.