buck tends to be a little better. As far as schrade, they have always beeen decent, but lower end. I have however owned, in the past one of the "everlasting" (schrade) sharp knives in greeen bone that was exceptional (they are not made anymore, except I believe they are still selling the comemmorative everlasting sharp knives right now at eknifeworks.com). Case's qaulity is not like it use to be. If you want a nice case knife, without having to pick through some to find one, buy one of their limited edition ones as the "fit and "finish tends to be a little more up to "par". With this said, you should look at what pattern you want and compare all three before buying.
Case in point. When the limited edition seahorse whittlers came out in the jade bone. I bought three all good qaulity. I saw some plain ones later, not as nice. When I bought the vintage bone seahorse the quality was not very good (to say the least). I had to really pick to find a decent one.