I have knives from both Buck and Schrade and my preference is overwhelmingly for the Buck. When I was younger in the 1970s it seemed like the Schrades had better quality control and came sharper out of box, better fit/finish than today (that I've noticed, anyway). Schrade does make a good rugged knife, though. The Schrade carbon steel seems to me to rust if you look at it funny.
I like the fit and feel of the Bucks better. Whether you pick a Buck from the 300 series or the 700 series. The 301 seems to have a bit less walk and talk snap to the blades than do the smaller Buck pocketknives. My 301 is one of the older flat ground versions with mirror-polished blades, but now they are all hollow-ground, which I like better and is unusual on a slip-joint pocketknife.
I've never had to use the Buck warranty service, but if I ever did, I live not too far from the Buck plant anyway.
Jim