Although I greatly admire the Schrade carbon steel blades, I go for Case over Schrade as a strictly personal preference. I can't fault the Schrades a bit, and I've worked with guys who have used the Old Timer series of pocket knives, and they were great knives. But some people like Ford, and some go for Chevy. To me, the Case just has a better feel, better selection of bone, and I like the CV steel. Easy to get very sharp, stays sharp for a good length of time, and the overall package is more attractive to me.
And I realize that YMMV, but the Case's always seemed to have less blade wobble after some years of use, while a lot of Old Timers seemed to develop the wiggles. And with the Swindon key build, you can't snug it up as easy.