Best + Worst Characters on the show

Best:
Leland McKenzie was a calming influence and good at managing all the egos at the firm but at the same time had a huge ego and was not a person to cross.
Tommy Mullaney was at first very abrasive but once you got used to him, he was really one of the only bright spots in the later season.
Michael Kuzak always got the high profile and had some of the best closing arguments ever.
Benny Stullwicz was such a realistic portrayal of a retarded character.

Worst:
Gwen Taylor was the most annoying character. Every plotline surrounding her was absolutely horrible.
Roxanne was annoying at times. All she did was complain and whine.
Arnie in the later seasons got to be annoying. The character got really tired and it seemed like the producers ran out of good storylines for him.
Abby was good in the first couple seasons but was misused after the firm took her back. They could not figure out what to do with her character so they made her a lesbian. It's no surprised that they dumped her after season 5.

Best recurring characters.
Hamilton Schuyler was a great character. Had David Rappaport survived, he may have gotten more guest appearances and even his own show.
Jack Sollers seemed to steal every scene he was in during season 5. He was as arrogant and cocky as Michael Kuzak but less wooden and more comical. The firm had hired him after Victor, Michael & Grace. Why they did not kept the character around after that is a huge mystery.
Murray Mellman provided a lot of comic relief in season 5. Vincent Gardenia was an underrated actor.
Rosalind Shays was one of the most manipulative, head strong characters on television at the time and had one of the most memorable demises in television history.