MAYOR MARION BARRY/A Mixed Bag

A year ago, the mayor was No. 1 on our winner's list, but the past 12 months have been a mixed bag. His name surfaced in a federal probe of drug use by city workers and his wife Effi hinted that the mayor was fed up with living in a fishbowl and might not seek a third term. But by late this year, the mayor was crowing about the city's victories on Capitol Hill and Wall Street and about his reelection prospects in 1986. IBRAHIM MUMIN/Revitalization?

As executive director of the Shaw Project Area Committee, Mumin was a key player in the city's decision to build the new Municipal Center near 14th and U streets NW. The building is supposed to help revitalize that depressed area, where stumbling blocks have impeded all such efforts in the past. ROBERT GREEN/Balancing Act

The new president of the University of the District of Columbia has done much in a brief period to improve the university's relations with the board of trustees, the mayor, the City Council and other interests. Now he must balance the school's open admissions policy against his desire to make it a more worthy academic center. IVANHOE DONALDSON/Investigation

Everything seemed to be coming up roses for Donaldson, the longtime political adviser to the mayor who stepped down as deputy mayor to become a vice president with E.F. Hutton and also won the chairmanship of the D.C. Democratic State Committee. But his fortunes suddenly changed late this year after reports of a grand jury investigation of Donaldson's handling of city funds while he headed the D.C. Department of Employment Services. JOSEPH diGENOVA/Probing

The U.S. attorney for the District has made big waves in this town by launching a number of grand jury investigations, including his probe of allegations of drug use by the mayor and wrongdoing in the city's Bates Street housing development. But diGenova has yet to complete any of his major investigations and pressure is beginning to mount for him to put up or shut up.