I have had a couple of sog folders for several years. One is the tomcat the other is the same size but has a thingy on it for one handed opening. Both normal smooth blades and pretty nice. They rarely get carried unless I am camping.
I love my spyderco harpy. All metal. I had a smaller spyderco, endura I think, with the plastic handle and clip. I lost it one day while working as it was light and the plastic clip does not attach strongly.
I take all metal spydercos and remove the clip, twist to make it really tight then locktight the three mini screws that hold the clip back on. My harpy has a curved serrated blade. It cuts anything, I use it for cheap wire on occasion as well. I abuse it and have never broken the point though I might be known to work screws with it or maybe wiggle things with it. I did buy the spiffy rods for sharpening serrated stuff and will spend some time, maybe an hour or more, just putting this thing back to perfect.
I am working a bit again, and I plan to get two more of these if I can find them at an ok price as I love the hooked blade. It cuts fast and hard.
I used to collect knives, and I find spyderco goes with me. So does a glock. I sold a few of the wood display cases of knives from a shrade and case, kept one of each. I have well over a couple grand in knives running around.
The sogs are nice but I have reglued on their rubber grips and have had the mechanism get iffy for locking due to pocket lint. Spyderco clicks open even with a bunch of lint.