Yeah, if your worried about corrosion, the buck will be a better bet, no doubt.
I have both and really you can't go wrong with either.
Going by the idea that you were looking for a more refined knife for daily work edc, I would go with the case. Fit and finish will almost certainly be better and it's a little bit slimmer knife in the pocket. I carry mine alot, very dress pants pocket friendly and people friendly.
I'm also a fan of the CV steel, nothing wrong with Bucks stainless, don't get me wrong, just my preference there, I get a really good edge on the CV easier than the buck stainless. The stainless just takes a little more work and gets a really nice edge too. I haven't really seen a difference in edge holding myself, both do pretty well, the CV just comes back to sharp easier for me.
I think you'll probably be happy with either one, so happy shopping and let us know what you get and how you like it. :thumbup:
Syn