This sounds like fun. Here are a few polycounts, from least to greatest ....

12239 : Furrette
16380 : Posette (P4)
19298 : Victoria Reduced Resolution
24387 : Judy
28984 : Victoria 1-2
33980 : Michael
68358 : Millennium Dragon
74510 : Victoria 3
94816 : George Deep's T-Rex

The Victoria 3 polycount is taken from the DAZ website (I don't have the figure, yet). All others were measured in trueSpace.

The record, as far as I know, is still held by one of Questor's Terminator endoskeletons, which weighed in at 206760 polys.