If I could only choose one out of my meager collection, my choice would be my Model 15 that I got from the Captain.

Mine has the SS blade with sawteeth, single finger grip green micarta handle with the single brass guard. I picked up a Spec-Ops nylon sheath for it.

I like the 5-1/2" blade length as it is easy to carry, even when seated in a vehicle or in a kayak. I have tried the various grip styles that are available for the Model 15's and the single finger grip fits my hand the best.