I've been using the Shaptons in 1,4 and 8k plus my J-Nat the most recently. That seems to give pretty consistent results that I like..! I use the Chosera 1k as a bevel setter exclusively, whether I go with the Naniwa's or Shaptons after that.

It does depend on the razor I guess though.... Hmm, tough question!

I guess the reason I went with the method I mentioned is that this works for me whatever the razor, whatever the grind and even if I get a total stinker I can put a great edge on it with that method. So if I had to sell every other stone and just stick with one set, thats what I'd pick.