Brian what you said regarding D2 is equally true of *ALL* steel. You can get "run of the mill" any steel, and the magic is ALWAYS in the heat treating.
Edge geometry, shape, thickness, etc, etc, all is moot with a crap HT. D2 is widely regarded amongst knife makers as one of the best knife steels out there, but it's notoriously finicky in HT, and has a wide range of end result.
CPM S30V has a great reputation, I think mostly because of the expense of the steel leading only high end makers with specialized HT ability to use it. The disadvantage is that S30V is a total PITA to sharpen, evne though it has great wear resistance. CPM 154CM is another high end steel in the crucible series, that shows great wear resistance/edge holding, but is much easier to sharpen than S30V. Bear in mind that there is a crucible version (CPM) of D2 also, that is *highly* regarded.
If you're an experienced sharpener, or someone that doesn't use his knife heavily in the field, S30V is a great choice for stainless. If you don't use it very often, you should rarely ever have to sharpen it. However, if you use your knife for hours at a time on trail, batoning, etc, I'm not sure I'd recommend it. Personally, for my heavy use knives (read: batoning, general abuse) I prefer something that's easy to maintain an edge on, and has high impact stress resistance, like 5160, or CPM 3V, etc.
Although, if you really want something maintenance free, and don't do alot of bushcrafting, what you *REALLY* need, is one of my soon-to-come Ti knives. Industrial titanium carbide spark deposition on a chisel ground edge creates a self-sharpening micro-serrated edge, that excels at cutting tasks, although isn't very suitable for impact stress tasks like chopping. ;) Yes, that's an official teaser.