I have a fair amount of CPM 154, and I am very pleased with the performance of this steel. I tend to buy only 3V in the Survive! line due to the toughness, but I have done a lot of work with O1, A3 and CPM 154. Of the last three mentioned, CPM 154 is my favorite from not only the corrosion resistance standpoint, but I feel it holds an edge better, and I can sharpen them to a more acute angle, than the carbon steels mentioned. But for my usage and environment, I think 3V is king. I rarely end up in torrential downpours any more without shelter, and 3V has been working well for me in Central PA. If I were still living in the costal bend of TX, I would probably have a very different outlook on my steel choice.