I usually carry a Spartan in my left cargo pocket along with an Executive in my RF pocket. Sometimes I switch out the Spartan for my Pioneer, but more often than not it's the Spartan. It feels a bit more comfortable in the pocket for me, even though the Pioneer is more durable.
For around 10 years, from the 1980s to the 90s, an older version of the Spartan (sans toothpick and tweezers) was my sole carry knife when I lived overseas in Taiwan. Even after I returned to the States, it was still the only knife I carried for several more years, and did pretty much anything knife-related I needed it for.
In the late '90s/ early 2K, I used a Tinker on and off, but found that I prefer the Spartan's corkscrew over the Tinker's back-mounted Phillips. I use the corkscrew for holding my eyeglass screwdriver, and also for loosening overly-tight knots. And I use the small screwdriver on the can opener for many Phillips screws. Even though the Spartan I'm carrying now is a more recent one, it still feels like an old friend. I still have that older one, and although it's a bit scarred up, it's still fully functional, but I've retired it for sentimental reasons.
Jim