CRKT. Never held a CRKT that didn't have an immediately obvious issue, be it centering, play, loose hardware (!!!), poor fit, cosmetic damage from the factory...
OTOH, I've never encountered a Cold Steel or a ProTech that has had a single issue straight from the factory. I snagged a large polished Espada for a little project, and it's centered (impressive for such a 5.5" blade), smooth, locks up perfectly, and is laser sharp. Cosmetically perfect as well, except for some smudges on the blade that I can only notice because it's a high-polish blade.