It all depends on what sort of company your emplyer is and what industry
you are in + your actual and aspiring position in the company.
If I were you I would dress for who I am with a clear idea of who I want to be in mind. MY Pick is 3) or 2). 2) fits you better, but 3) speaks authority more than sex appeal.
Here is my six cents:
1) Receptionist
2) Head of receptionist
3) Business associate w/ a serious career goal
4) Shall be disgarded
5) Nice and sexy. If you are the star sales of the year at Marry Kay or, if you are your boss' mistress and he doesn't give you an allowance, then wear it.
6) Fabric not for this festive and cold season.
7) Entry-level associate
7)No word, I just don't like it.