To update my post from 2 years ago.....

V4/M4 still has more content (Characters, Clothing, and Hair) by several orders of magnitude. Now that content is even easier to move to whatever figure I wish to use than it was two years ago.

V4/M4 still has a wider variety of content (Characters, Clothing, and Hair) by several orders of magnitude. This allows me to have a wider variety of scenes than any other figure. And it is easier to move to other figures than it was 2 years ago.

V4/M4 uses less system resources than newer DAZ figures. 1/2Gb figures is the height of stupidity when nothing else is made to the same level of detail.

V4/M4 is less expensive than newer DAZ figures. Other Poser native figures are still price competitive with M4/V4, but the G figures are steadily going up in price.

V4/M4 is easy to upgrade (i.e. add weightmapping, subdivision, etc) to have all of the features of a modern figure.

V4/M4 is an easier figure to use than the G figures, based on how they were initially designed way back when.

At the end of the day, the DAZ Gen 4 figures are the most cost-effective figures available. That being said, they aren't my go-to figures. I use V4/M4 to fill gaps that aren't addressed in enough depth for other figures. Then again, I have never understood the desire to limit oneself to a single mesh. More figures equal more variety.

And yeah, DSON is still a poorly designed, poorly implemented piece of software. If one wants to use G figures - it is easiest just to export the figures out of DS and convert them to Poser native. My DAZ G2 figures are about the same size as my SM G2 figures (about 100Mb each).