If you have the skill and stones I don't see any reason not to get the ZDP-189 version.
ZDP-189 takes a finely polished edge very nicely, and once you are used to sharpening it you'll appreciate how easy everything else is.
One of the great things about this stuff is that it can take a very thin edge compared to softer steel. I usually thin down the edge bevel to five degrees per side (it'll be fifteen degrees from the factory). While it can be done with stones, a belt sander will take a fraction of the time. Just be careful to keep the blade cool, and don't grind on one spot for too long, especially when it starts getting thin.
The benefits of a thinned edge are a potential increase in sharpness, and the knife will cut much nicer overall (due to the lack of metal behind the edge). The downside is also due to the lack of metal behind the edge, it is much more susceptible to damage, and when it is damaged it is much worse.
ZDP-189 will still work great sharpened at fifteen degrees per side, and will still get very sharp and hold it'd edge for a long time, though if these things don't concern you too much VG-10 is also a very good steel.
For the benefits of VG-10, it is the most balanced steel I have used so far.
It holds an edge well, takes a razor edge better than anything else I've tried, while still being relatively easy to sharpen, and in general is quite tough (usually doesn't chip when you hit something hard).
It's hard to go wrong with either.