Full sized Trapper. Have one in antique bone (my carry), stag and mother of pearl. Got interested in the Trapper when I was on a bear hunt in 99. The guide carried this Trapper and a Norton stone and I watched him skin and quarter 5 bears that 2 weeks. I became a believer.
A lot of the smaller/middle-sized models appeal to me: Pen, Eisenhower, Stockman, Baby Butterbean and Peanut etc because they take virtually no space and perform well above their weight.
Sod Buster and Sod Buster Jr. I carry the Sod Buster with me to steak houses just in case the places knifes are not up to snuff. I also use it in the kitchen or camping as a camp kitchen knife. It is also a good yard work knife.
I've carried this Peanut for years. It's perfect to carry in everything from athletic shorts to suit pants. I'm never without it. I've owned a Toothpick as well, but actually broke the thin blade. I had a Russlock for over a decade but forgot about it one time when traveling and I'm sure it's in the pocket of a TSA Agent at DFW Airport now. All are great knives. I've got a tactical Benchmade folder that doesn't get as much carry as my Case Peanut. It's a great little gentleman's folder.