i'm hardly qualified to answer this question as i have neither of the aforementioned knives but i would like to exposit my opinion that if you're buying a knife out of necessity you'd do better to avoid the chopper. my main chopper is a 17" him imp and as knife guy said, choppers are best in combination with a smaller knife. considering this, gravelface is right. if you're gonna get a chopper, go all out and get a big bad one like the dog father if you're gonna do without wieldability anyway. it's still less than a camp tramp....and so wicked awesome. keep you favorite smaller fixed or folding knife in the pocket or on the belt and you're all set! so the real question: scrapper six or dog father?
or just buy em all, seems diver316ss intends to sell his. try the PM.