I don't know when a thread goes zombie around these parts, but I'm the OP so I suppose I have some leeway.
I figured I'd give a final assessment of the five knives I selected and played with over the past few weeks. In order of my personal preference:
1. Rough Rider RR1357 (China) - This knife has been a revelation. Because of my initial bias against Chinese knives, I subjected this piece to a harder workout than the others (although still well within pocket knife EDC uses). But the things that swayed me weren't performance, although for a Chinese knife going against American and European knives, it performed well. For about $10, I got jigged bone (as opposed to synthetic or plain wood), grooved bolsters, a polished blade of good steel (although the Case Sodbuster Jr. CV blade was polished best and the steel was better), comparable fit and finish, and most significantly the liner lock. A medium-sized pocket knife of classic style and materials that locks positively. Nice. For $10 with very good fit and finish -- Super nice. Overall, this is the best knife to me and I love carrying it rotating with my more expensive EDC's. (2nd least expensive knife of my selections).
2. Opinel No. 6 Carbone (France) - A beautiful, lightweight knife that fulfills all the roles of a pocket knife, prepares food very well, plus it locks (and locks pretty cool). The steel sharpens easily and razor sharp. The handle fit my hand best. Made my regular EDC rotation. (1st least expensive)
3. Case Sodbuster Jr. 3137 CV (USA) - This is the workhorse knife. Bigger, stronger, tougher. The Case CV is sharp, strong steel, and patinas beautifully. You can't compare it directly to the Opinel No. 6 blade because the blade profiles are so different, at the very opposite ends of this class. This knife is the quintessential EDC for a workman, hence the name. But the grind makes it passable for food prep as well. I put it in the front pocket of my main outdoors kit. If I was a workman and more of a regular outdoorsman instead of a desk jockey and weekend BBQ guy with a honey-do list this probably would have been my #1 EDC from this group of knives. (4th least expensive)
4. Buck 302 Solitaire (USA) - The variety of knives in this class is trippy. This one is a bit longer than the Sodbuster but a lot slimmer. Still hefty enough, though. I'm a California boy so Buck knives are part of the lore. Buck 420HC is good steel, among the best for a guy who just wants a knife with solid performing, easy sharpening steel that fits the pocketbook. This is a classic that if you needed a knife and found it you would be very happy. (5th least expensive)
5. MAM Iberica (Portugal) - It maybe wasn't fair to put this knife in this class. Length and other dimensions, it fit, but the svelte handle (skinny end, flat sides) made it much more of a gentleman-sized dress pocket knife, without the refinement materials-wise. Construction similar to Opinel except liner lock vs. collar lock. Opinel collar lock slightly more positive although slightly more unwieldy. Opinel handle much more hand-filling. But the MAM Iberica rides very nicely in slacks pockets. And notwithstanding the handle the blade performs close to the Opinel. Think sitting at an office desk and slicing a juicy orange to eat while working. No peeling, no undue working, because the blade is big enough to neatly slice an orange into eighths. Made my office carry rotation. (3rd least expensive)
If Case would make a lockback Sodbuster Jr CV in antique jigged bone (or better yet, antique jigged green bone) I'd buy about a hundred of 'em.