I've made many knives out of each and given proper heat treatment don't believe you will be dissatisfied with either. D2 is not a stainless steel but when polished as opposed to just a ground finish almost acts like stainless. I would caution you that it does not stain, it pits. As someone else pointed out, deep enough to require re-grinding at times.
That's exactly what I saw with my knife. The Military that pitted had the fine grooves perpendicular to the edge typical of a Spyderco Military blade vs a more polished concave than say on my Doziers. Maybe that's why it pitted so quickly. I convexed the edge and polished it some and so far it hasn't started to rust like it did before and I've been carrying it for a couple weeks now. So maybe you need to make sure your D-2 blades are a little more polished than other steels..................................DJ
