I'm had both (Actually, still have the B/M CSK), & while the SOG's blade is a little longer (7" vs 6"), I'd give the nod to the B/M. It has better steel & if you're talking about hikes & such, where severe rust resistence isn't as much an issue, then I'd take D2 over AUS 6 anyday (Or AUS 8 that's on other versions of the SOG 2000).