Here's my top 10:
1 General Grievous, to proper scale, with soft goods cape
2 Emperor Palpatine from duel with Mace Windu, super-articulated
3 Emperor Palpatine from duel with Yoda, super-articulated
4 Padme in funeral dress, with casket
5 Padme in hospital gown (birth of the twins)
6 Padme's baby-delivery droid
7 Padme's medical droid
8 Maneeli Tuun
9 Clone Pilot, super-articulated, with removable helmet
10 Cin Drallig