Seems like I'm with the bigger crowd in voting for 70s PT Carolyn. I just love how she's all bitter and drunk all the time. Just wants to have a drink and belittle her "nothing" husband. THAT Carolyn sure is different than all the other ones.
I also liked the 95 crazy version of Carolyn, because she giggled at everything she said, and was just a hoot to watch. Not to mention the fact that she knew more than she let on, and was putting on a show, which was quite a twist that she played very well.
The original, rich, spoiled Carolyn ranks up there for me as well. NB just played her to the hilt and did a helluva job doing it. They way she toyed and flirted with all the guys, and brought home a new guy every week just to get on her mother's nerves, because she didn't have anything better to do, was PRICELESS.