For normal field use where I might get caught in a rain or two I would have no qualms with a Dozier in D2 with his Wilderness sheath. The excellent Kydex sheath would be just as important since any leather will hold water no matter how well it's treated. D2 won't rust nearly as easily as many carbon steels that you have to constantly protect.
If I had to go full stainless I am very fond of the Helle knives with their 3 layers of bonded stainless. They are both easy to sharpen and keep a razor edge.
