Oh, I hate that character! She's corrupt, self-centered, evil, disrespectful, hypocritical, hateful, manipulative, envious, faithless, deceitful, arrogant, nasty, undeserving...shall I go on? She's certainly more contemptable than Dukat, and could even be in the running for ultimate evil villian of the series as far as I'm concerned.
Edit: Ah, Beemer beat me to it. I like self-righteous, though. That's a good one.