Used to be the Native 5 lightweight for me, but then I got this thing:
ATS-55 Rescue from the late 1990s. Got it brand-new with all its original papers from eBay a few weeks ago, and it's kicked every other knife I own out of my pocket. The Native feels small and stubby now, although I still enjoy and carry it sometimes. But this Rescue is my absolute favorite knife.
Trying to find an old plainedge Endura from the same time period now to go with this one as a backup. I like the feeling of having a semi-matching set of knives