I'm more a of a physical person most of the time. How you touch me, kiss me, etc. alongside any dirty talking is what really lights my fire. For me, a man could say nothing but if he pushed me up against a wall, then kissed me in the right fashion, I'm done. Knees weak and my vagina is as wet as a slip and slide.
But I do enjoy dirty talk before and during sex as a stand alone, some of the time as well. Especially if it's done properly.
Now I know that everyone's "properly" is different and varies from person to person but for me, I like a little creativity and feeling in it. I don't necessarily find being called a "whore" or a "slut" degrading but it's not a turn on all that much either. If my partner gets turned on by calling me a slut because of the naughty things I do then fine, that's kind of hot for that particular moment. But other than that...not a big thing for me and I would never ask for you to call me that.
Now when sex is rough, Dirty talk that is short and sweet, coupled with your grunts and moans can make it sexy and incredibly arousing. Dirty talk in the heat of the moment or when you are so turned on that you cant/don't want to say much is awesome. '
But if you are going to make it sensual then I think Prince_Hal has the idea of what I enjoy most. ;) It's different, eloquent and beautiful sounding. It gives you goosebumps and sends a shiver down your spine because (to me) it's affectionate and loving. Romantic as well, which I enjoy quite a bit.