I got most of the G2 characters free from Content Paradise. They gave away a lot of the models that are in the store now.  At least to "Passport Club" members (their version of the Platinum Club). They each came with their own clothing packs.

I think Miki was the most popular of the G2 figures. She got a lot of third party support.

I really liked the idea of the G2 figures. The same bodies, so they could share clothing, but different heads, which resulted in much better expressions for ethnic characters. I remember Mike and Vicky at the time...if you applied the DAZ ethnic morphs, their teeth would show through their faces if you tried to give them expressions.