I like D2 , especially with the heat treat being done by Paul Bos ( and now Mr Farner who runs Bos HT ) , I have used S30v , don't care for it much , kind of a pain in the arse to work with to get a nice finish.
I have worked a bit with ATS-34 recently , not bad stuff , not real clean , found many inclusions in the three 36" bars I had. Was able to work around them though.
A steel I found that ground nicely , took a nice edge and a nice finish was Boehler N690.
CPM154 was a nice steel to work , did all the grinding of the bevels after heat treat , it was still a pleasure to grind even after HT ( not so much with S30v).
My personal knife is one I made from D2 , I use it a lot , it holds a nice edge , ground it kind of thin , only touch it up once in awhile on the cardboard wheels.