The selection of stainless depends on the purpose of the knife. Listed below have been my choices for a few years. I have not listed Crucible steels as the future availabilty of these steels seems soon to be history.
440c- good all around ss and great if around a humid or salt environment
AEB-L Probably the most under rated steel I have used, grinds easily and holds a
fine edge and sharpens easily.
ATS34 Oriental 154Cm, good all around stainless.
D2 While not quite a SS it is close and holds a great edge.
The four steels above is not all enclusive, however all good choices. My choice goes to AEB-L and D2. My Marine son likes the AEB-L and he stress's the heck out of it. Which ever you choose will suffice. A Cryo treatment between Ht & temper will greatly improve the blades quality. HT is the key in all steels, IMHO. Good Luck!