I'm a huge fan of the Dragonfly but nobody else has voted for it, so I'd go with either a Delica or Endura - espcially if it was a special edition with G-10 handles. D2 is a good using steel, it should be on a model that a) gets used often and b) doesn't already have a number of blade steel options available.
As for questions about D2 vs S30V and 440v, I have one knife in D2 and while it's less corrosion resistant than anything I've had in 440v, ATS-34 orBG-42, it will take a wicked edge and hold it longer than my ATS-34 knives and about as well as my 440v Starmate and the BG-42 Sebenza I used to have. Just my personal experience after plenty of use (no scientific card board cutting tests, etc).
Jon