Call me old fashioned, but I prefer 440C, 154CM and D2 to pretty much anything else. A D2 Griptilian is in my pocket currently.
I had an interesting discussion with Kyle Defoor about steels. He doesn't care what steel his knives are, as long as he can sharpen them quickly, anywhere in the world, with the bare basics.
Granted, most of us don't have KDF's background or mission parameters, but I think his approach has some merit. It's pretty close to some of the deer hunters I know, who want a steel they can freshen up easily, in the middle of dressing out game.