Eliza Dushku's style of acting just doesn't work for me, but I know the difference between that and not being able to act. For instance: Jared Padalecki is not a particularly good actor. He has his moments, but...they're the exception to the rule. On the other hand, I know Eliza can act, but for some reason I don't find it convincing. I still think she's awesome, though, even if I prefer the Dollhouse episodes that are more ensemble-oriented rather than All About Echo. I'm not a huge fan of Tahmoh's acting either, which probably doesn't help.

I've never seen Mad Men, but I completely agree with you about Rita on Dexter. Julie Benz's characters are always getting hated on, which pisses me off.