You will need to sample both programs and decide which meet your needs.

I'm more concerned about figure choice than program choice.  I'm completely confident I can make myself comfortable in any program, and even use both in tandem if that's the best solution.  If G2 females (+ add-ons?) give better results, or same results with MUCH less manual tweaking, than using, say, Hivewire Dawn, then G2 is the way I want to go.  And IF G2 doesn't work fully in Poser, then I'll go DS, otherwise I'll compare both programs. Do you have any recommendation on figure choice?  And if you recommend G2, does G2 work ok in Poser?