TV Shows featuring women villains?

I love Alexis Colby in "Dynasty" and Tanya Turner in "Footballers Wives"; manipulative, scheming, vindictive, calculating, cunning, bitchy women are great to watch!

Emily Thorne in "Revenge" quickly lost her focus and "Game of Thrones" bored me in Season 2 and I haven't really found anything else.

Are there any shows you can recommend that contain such antagonistic female characters?