Several of the large production manufacturers like Benchmade and Spyderco adopted S30V in some of their high end production knives and had reports of problems with edge chipping. It's good stuff and I have, make and use S30V blades and haven't had big problems with chipping, but I don't chop cinder blocks either. Honestly, I doubt the average user will be able to tell the diff. in these two. ATS34 might need to be touched up a bit more often, but S30V will be a little harder to sharpen. End of the day, the guy skinnin' deer and hogs and/or cleanin' fish is gonna be very happy with either one. ATS34 and S30V are both good steels. Vince's point is well taken, for daily use I doubt anyone with an ATS34 blade is ever gonna wish they had S30V instead.
