I have three Benchmade knives, one in 440, one in 154CM, and one in S30V (Griptilian, Ares, and Switchback, respectively). I think edge geometry played a bigger factor than steel, except perhaps the one in S30V... never used that one much as it was a little too delicate for my tastes, but i'll tell you what, that steel is a PAIN to sharpen. takes forever...(so, i suppose it also takes a while to dull...)
the knife in 154CM cuts better than the 440, but i have it sharpened to a 38 degree edge as opposed to a 44 degree on the 440 steel...
FWIW... haven't used either the Griptilian or Switchback in years, though. i LOVE the Ares. too bad it's discontinued.
For a simple camp chore knife, i'd go with the carbon steel knife. if you're gonna be, say, on a saltwater fishing boat, go with the 440.
TMM