Well, here's my list (Although I rarely watch much of anything anymore):
10 -Kristy Swanson
9 - Anna Nakagawa
8 - Vivian Leigh
7 - Denise Richards
6 - Melissa Joan Hart
5 - Catherine Zeta-Jones
4 - Elizabeth Hurley
3 - Jessica Brooks
2 - Rebecca Romijn-Stamos
1 - (Not an actress) Mrs. Flagg
Denise Richards & Elizabeth Hurley? Yikes!! Besides, they are banned due to the Brooke Shields/Sarah Michelle Geller rule. sorry